| 1 | /** |
| 2 | * Copyright (c) Meta Platforms, Inc. and affiliates. |
| 3 | * |
| 4 | * This source code is licensed under the MIT license found in the |
| 5 | * LICENSE file in the root directory of this source tree. |
| 6 | * |
| 7 | * @emails react-core |
| 8 | * @jest-environment ./scripts/jest/ReactDOMServerIntegrationEnvironment |
| 9 | */ |
| 10 | |
| 11 | 'use strict'; |
| 12 | import { |
| 13 | insertNodesAndExecuteScripts, |
| 14 | mergeOptions, |
| 15 | } from '../test-utils/FizzTestUtils'; |
| 16 | |
| 17 | let JSDOM; |
| 18 | let Stream; |
| 19 | let React; |
| 20 | let ReactDOM; |
| 21 | let ReactDOMClient; |
| 22 | let ReactDOMFizzServer; |
| 23 | let Suspense; |
| 24 | let SuspenseList; |
| 25 | let textCache; |
| 26 | let loadCache; |
| 27 | let writable; |
| 28 | let CSPnonce = null; |
| 29 | let container; |
| 30 | let buffer = ''; |
| 31 | let hasErrored = false; |
| 32 | let fatalError = undefined; |
| 33 | let renderOptions; |
| 34 | let waitForAll; |
| 35 | let assertLog; |
| 36 | let Scheduler; |
| 37 | let clientAct; |
| 38 | let streamingContainer; |
| 39 | let assertConsoleErrorDev; |
| 40 | |
| 41 | describe('ReactDOMFloat', () => { |
| 42 | beforeEach(() => { |
| 43 | jest.resetModules(); |
| 44 | JSDOM = require('jsdom').JSDOM; |
| 45 | |
| 46 | const jsdom = new JSDOM( |
| 47 | '<!DOCTYPE html><html><head></head><body><div id="container">', |
| 48 | { |
| 49 | runScripts: 'dangerously', |
| 50 | }, |
| 51 | ); |
| 52 | // We mock matchMedia. for simplicity it only matches 'all' or '' and misses everything else |
| 53 | Object.defineProperty(jsdom.window, 'matchMedia', { |
| 54 | writable: true, |
| 55 | value: jest.fn().mockImplementation(query => ({ |
| 56 | matches: query === 'all' || query === '', |
| 57 | media: query, |
| 58 | })), |
| 59 | }); |
| 60 | streamingContainer = null; |
| 61 | global.window = jsdom.window; |
| 62 | global.document = global.window.document; |
| 63 | global.navigator = global.window.navigator; |
| 64 | global.Node = global.window.Node; |
| 65 | global.addEventListener = global.window.addEventListener; |
| 66 | global.MutationObserver = global.window.MutationObserver; |
| 67 | // The Fizz runtime assumes requestAnimationFrame exists so we need to polyfill it. |
| 68 | global.requestAnimationFrame = global.window.requestAnimationFrame = cb => |
| 69 | setTimeout(cb); |
| 70 | container = document.getElementById('container'); |
| 71 | |
| 72 | CSPnonce = null; |
| 73 | React = require('react'); |
| 74 | ReactDOM = require('react-dom'); |
| 75 | ReactDOMClient = require('react-dom/client'); |
| 76 | ReactDOMFizzServer = require('react-dom/server'); |
| 77 | Stream = require('stream'); |
| 78 | Suspense = React.Suspense; |
| 79 | SuspenseList = React.unstable_SuspenseList; |
| 80 | Scheduler = require('scheduler/unstable_mock'); |
| 81 | |
| 82 | const InternalTestUtils = require('internal-test-utils'); |
| 83 | waitForAll = InternalTestUtils.waitForAll; |
| 84 | assertLog = InternalTestUtils.assertLog; |
| 85 | clientAct = InternalTestUtils.act; |
| 86 | assertConsoleErrorDev = InternalTestUtils.assertConsoleErrorDev; |
| 87 | |
| 88 | textCache = new Map(); |
| 89 | loadCache = new Set(); |
| 90 | |
| 91 | buffer = ''; |
| 92 | hasErrored = false; |
| 93 | |
| 94 | writable = new Stream.PassThrough(); |
| 95 | writable.setEncoding('utf8'); |
| 96 | writable.on('data', chunk => { |
| 97 | buffer += chunk; |
| 98 | }); |
| 99 | writable.on('error', error => { |
| 100 | hasErrored = true; |
| 101 | fatalError = error; |
| 102 | }); |
| 103 | |
| 104 | renderOptions = {}; |
| 105 | if (gate(flags => flags.shouldUseFizzExternalRuntime)) { |
| 106 | renderOptions.unstable_externalRuntimeSrc = |
| 107 | 'react-dom/unstable_server-external-runtime'; |
| 108 | } |
| 109 | }); |
| 110 | |
| 111 | const bodyStartMatch = /<body(?:>| .*?>)/; |
| 112 | const headStartMatch = /<head(?:>| .*?>)/; |
| 113 | |
| 114 | async function act(callback) { |
| 115 | await callback(); |
| 116 | // Await one turn around the event loop. |
| 117 | // This assumes that we'll flush everything we have so far. |
| 118 | await new Promise(resolve => { |
| 119 | setImmediate(resolve); |
| 120 | }); |
| 121 | if (hasErrored) { |
| 122 | throw fatalError; |
| 123 | } |
| 124 | // JSDOM doesn't support stream HTML parser so we need to give it a proper fragment. |
| 125 | // We also want to execute any scripts that are embedded. |
| 126 | // We assume that we have now received a proper fragment of HTML. |
| 127 | let bufferedContent = buffer; |
| 128 | buffer = ''; |
| 129 | |
| 130 | if (!bufferedContent) { |
| 131 | jest.runAllTimers(); |
| 132 | return; |
| 133 | } |
| 134 | |
| 135 | const bodyMatch = bufferedContent.match(bodyStartMatch); |
| 136 | const headMatch = bufferedContent.match(headStartMatch); |
| 137 | |
| 138 | if (streamingContainer === null) { |
| 139 | // This is the first streamed content. We decide here where to insert it. If we get <html>, <head>, or <body> |
| 140 | // we abandon the pre-built document and start from scratch. If we get anything else we assume it goes into the |
| 141 | // container. This is not really production behavior because you can't correctly stream into a deep div effectively |
| 142 | // but it's pragmatic for tests. |
| 143 | |
| 144 | if ( |
| 145 | bufferedContent.startsWith('<head>') || |
| 146 | bufferedContent.startsWith('<head ') || |
| 147 | bufferedContent.startsWith('<body>') || |
| 148 | bufferedContent.startsWith('<body ') |
| 149 | ) { |
| 150 | // wrap in doctype to normalize the parsing process |
| 151 | bufferedContent = '<!DOCTYPE html><html>' + bufferedContent; |
| 152 | } else if ( |
| 153 | bufferedContent.startsWith('<html>') || |
| 154 | bufferedContent.startsWith('<html ') |
| 155 | ) { |
| 156 | throw new Error( |
| 157 | 'Recieved <html> without a <!DOCTYPE html> which is almost certainly a bug in React', |
| 158 | ); |
| 159 | } |
| 160 | |
| 161 | if (bufferedContent.startsWith('<!DOCTYPE html>')) { |
| 162 | // we can just use the whole document |
| 163 | const tempDom = new JSDOM(bufferedContent); |
| 164 | |
| 165 | // Wipe existing head and body content |
| 166 | document.head.innerHTML = ''; |
| 167 | document.body.innerHTML = ''; |
| 168 | |
| 169 | // Copy the <html> attributes over |
| 170 | const tempHtmlNode = tempDom.window.document.documentElement; |
| 171 | for (let i = 0; i < tempHtmlNode.attributes.length; i++) { |
| 172 | const attr = tempHtmlNode.attributes[i]; |
| 173 | document.documentElement.setAttribute(attr.name, attr.value); |
| 174 | } |
| 175 | |
| 176 | if (headMatch) { |
| 177 | // We parsed a head open tag. we need to copy head attributes and insert future |
| 178 | // content into <head> |
| 179 | streamingContainer = document.head; |
| 180 | const tempHeadNode = tempDom.window.document.head; |
| 181 | for (let i = 0; i < tempHeadNode.attributes.length; i++) { |
| 182 | const attr = tempHeadNode.attributes[i]; |
| 183 | document.head.setAttribute(attr.name, attr.value); |
| 184 | } |
| 185 | const source = document.createElement('head'); |
| 186 | source.innerHTML = tempHeadNode.innerHTML; |
| 187 | await insertNodesAndExecuteScripts(source, document.head, CSPnonce); |
| 188 | } |
| 189 | |
| 190 | if (bodyMatch) { |
| 191 | // We parsed a body open tag. we need to copy head attributes and insert future |
| 192 | // content into <body> |
| 193 | streamingContainer = document.body; |
| 194 | const tempBodyNode = tempDom.window.document.body; |
| 195 | for (let i = 0; i < tempBodyNode.attributes.length; i++) { |
| 196 | const attr = tempBodyNode.attributes[i]; |
| 197 | document.body.setAttribute(attr.name, attr.value); |
| 198 | } |
| 199 | const source = document.createElement('body'); |
| 200 | source.innerHTML = tempBodyNode.innerHTML; |
| 201 | await insertNodesAndExecuteScripts(source, document.body, CSPnonce); |
| 202 | } |
| 203 | |
| 204 | if (!headMatch && !bodyMatch) { |
| 205 | throw new Error('expected <head> or <body> after <html>'); |
| 206 | } |
| 207 | } else { |
| 208 | // we assume we are streaming into the default container' |
| 209 | streamingContainer = container; |
| 210 | const div = document.createElement('div'); |
| 211 | div.innerHTML = bufferedContent; |
| 212 | await insertNodesAndExecuteScripts(div, container, CSPnonce); |
| 213 | } |
| 214 | } else if (streamingContainer === document.head) { |
| 215 | bufferedContent = '<!DOCTYPE html><html><head>' + bufferedContent; |
| 216 | const tempDom = new JSDOM(bufferedContent); |
| 217 | |
| 218 | const tempHeadNode = tempDom.window.document.head; |
| 219 | const source = document.createElement('head'); |
| 220 | source.innerHTML = tempHeadNode.innerHTML; |
| 221 | await insertNodesAndExecuteScripts(source, document.head, CSPnonce); |
| 222 | |
| 223 | if (bodyMatch) { |
| 224 | streamingContainer = document.body; |
| 225 | |
| 226 | const tempBodyNode = tempDom.window.document.body; |
| 227 | for (let i = 0; i < tempBodyNode.attributes.length; i++) { |
| 228 | const attr = tempBodyNode.attributes[i]; |
| 229 | document.body.setAttribute(attr.name, attr.value); |
| 230 | } |
| 231 | const bodySource = document.createElement('body'); |
| 232 | bodySource.innerHTML = tempBodyNode.innerHTML; |
| 233 | await insertNodesAndExecuteScripts(bodySource, document.body, CSPnonce); |
| 234 | } |
| 235 | } else { |
| 236 | const div = document.createElement('div'); |
| 237 | div.innerHTML = bufferedContent; |
| 238 | await insertNodesAndExecuteScripts(div, streamingContainer, CSPnonce); |
| 239 | } |
| 240 | await 0; |
| 241 | // Let throttled boundaries reveal |
| 242 | jest.runAllTimers(); |
| 243 | } |
| 244 | |
| 245 | function getMeaningfulChildren(element) { |
| 246 | const children = []; |
| 247 | let node = element.firstChild; |
| 248 | while (node) { |
| 249 | if (node.nodeType === 1) { |
| 250 | if ( |
| 251 | // some tags are ambiguous and might be hidden because they look like non-meaningful children |
| 252 | // so we have a global override where if this data attribute is included we also include the node |
| 253 | node.hasAttribute('data-meaningful') || |
| 254 | (node.tagName === 'SCRIPT' && |
| 255 | node.hasAttribute('src') && |
| 256 | node.getAttribute('src') !== |
| 257 | renderOptions.unstable_externalRuntimeSrc && |
| 258 | node.hasAttribute('async')) || |
| 259 | (node.tagName !== 'SCRIPT' && |
| 260 | node.tagName !== 'TEMPLATE' && |
| 261 | node.tagName !== 'template' && |
| 262 | !node.hasAttribute('hidden') && |
| 263 | !node.hasAttribute('aria-hidden') && |
| 264 | // Ignore the render blocking expect |
| 265 | (node.getAttribute('rel') !== 'expect' || |
| 266 | node.getAttribute('blocking') !== 'render')) |
| 267 | ) { |
| 268 | const props = {}; |
| 269 | const attributes = node.attributes; |
| 270 | for (let i = 0; i < attributes.length; i++) { |
| 271 | if ( |
| 272 | attributes[i].name === 'id' && |
| 273 | attributes[i].value.includes(':') |
| 274 | ) { |
| 275 | // We assume this is a React added ID that's a non-visual implementation detail. |
| 276 | continue; |
| 277 | } |
| 278 | props[attributes[i].name] = attributes[i].value; |
| 279 | } |
| 280 | props.children = getMeaningfulChildren(node); |
| 281 | children.push(React.createElement(node.tagName.toLowerCase(), props)); |
| 282 | } |
| 283 | } else if (node.nodeType === 3) { |
| 284 | children.push(node.data); |
| 285 | } |
| 286 | node = node.nextSibling; |
| 287 | } |
| 288 | return children.length === 0 |
| 289 | ? undefined |
| 290 | : children.length === 1 |
| 291 | ? children[0] |
| 292 | : children; |
| 293 | } |
| 294 | |
| 295 | function BlockedOn({value, children}) { |
| 296 | readText(value); |
| 297 | return children; |
| 298 | } |
| 299 | |
| 300 | function resolveText(text) { |
| 301 | const record = textCache.get(text); |
| 302 | if (record === undefined) { |
| 303 | const newRecord = { |
| 304 | status: 'resolved', |
| 305 | value: text, |
| 306 | }; |
| 307 | textCache.set(text, newRecord); |
| 308 | } else if (record.status === 'pending') { |
| 309 | const thenable = record.value; |
| 310 | record.status = 'resolved'; |
| 311 | record.value = text; |
| 312 | thenable.pings.forEach(t => t()); |
| 313 | } |
| 314 | } |
| 315 | |
| 316 | function readText(text) { |
| 317 | const record = textCache.get(text); |
| 318 | if (record !== undefined) { |
| 319 | switch (record.status) { |
| 320 | case 'pending': |
| 321 | throw record.value; |
| 322 | case 'rejected': |
| 323 | throw record.value; |
| 324 | case 'resolved': |
| 325 | return record.value; |
| 326 | } |
| 327 | } else { |
| 328 | const thenable = { |
| 329 | pings: [], |
| 330 | then(resolve) { |
| 331 | if (newRecord.status === 'pending') { |
| 332 | thenable.pings.push(resolve); |
| 333 | } else { |
| 334 | Promise.resolve().then(() => resolve(newRecord.value)); |
| 335 | } |
| 336 | }, |
| 337 | }; |
| 338 | |
| 339 | const newRecord = { |
| 340 | status: 'pending', |
| 341 | value: thenable, |
| 342 | }; |
| 343 | textCache.set(text, newRecord); |
| 344 | |
| 345 | throw thenable; |
| 346 | } |
| 347 | } |
| 348 | |
| 349 | function AsyncText({text}) { |
| 350 | return readText(text); |
| 351 | } |
| 352 | |
| 353 | function renderToPipeableStream(jsx, options) { |
| 354 | // Merge options with renderOptions, which may contain featureFlag specific behavior |
| 355 | return ReactDOMFizzServer.renderToPipeableStream( |
| 356 | jsx, |
| 357 | mergeOptions(options, renderOptions), |
| 358 | ); |
| 359 | } |
| 360 | |
| 361 | function loadPreloads(hrefs) { |
| 362 | const event = new window.Event('load'); |
| 363 | const nodes = document.querySelectorAll('link[rel="preload"]'); |
| 364 | resolveLoadables(hrefs, nodes, event, href => |
| 365 | Scheduler.log('load preload: ' + href), |
| 366 | ); |
| 367 | } |
| 368 | |
| 369 | function errorPreloads(hrefs) { |
| 370 | const event = new window.Event('error'); |
| 371 | const nodes = document.querySelectorAll('link[rel="preload"]'); |
| 372 | resolveLoadables(hrefs, nodes, event, href => |
| 373 | Scheduler.log('error preload: ' + href), |
| 374 | ); |
| 375 | } |
| 376 | |
| 377 | function loadStylesheets(hrefs) { |
| 378 | loadStylesheetsFrom(document, hrefs); |
| 379 | } |
| 380 | |
| 381 | function loadStylesheetsFrom(root, hrefs) { |
| 382 | const event = new window.Event('load'); |
| 383 | const nodes = root.querySelectorAll('link[rel="stylesheet"]'); |
| 384 | resolveLoadables(hrefs, nodes, event, href => { |
| 385 | Scheduler.log('load stylesheet: ' + href); |
| 386 | }); |
| 387 | } |
| 388 | |
| 389 | function errorStylesheets(hrefs) { |
| 390 | const event = new window.Event('error'); |
| 391 | const nodes = document.querySelectorAll('link[rel="stylesheet"]'); |
| 392 | resolveLoadables(hrefs, nodes, event, href => { |
| 393 | Scheduler.log('error stylesheet: ' + href); |
| 394 | }); |
| 395 | } |
| 396 | |
| 397 | function resolveLoadables(hrefs, nodes, event, onLoad) { |
| 398 | const hrefSet = hrefs ? new Set(hrefs) : null; |
| 399 | for (let i = 0; i < nodes.length; i++) { |
| 400 | const node = nodes[i]; |
| 401 | if (loadCache.has(node)) { |
| 402 | continue; |
| 403 | } |
| 404 | const href = node.getAttribute('href'); |
| 405 | if (!hrefSet || hrefSet.has(href)) { |
| 406 | loadCache.add(node); |
| 407 | onLoad(href); |
| 408 | node.dispatchEvent(event); |
| 409 | } |
| 410 | } |
| 411 | } |
| 412 | |
| 413 | it('can render resources before singletons', async () => { |
| 414 | const root = ReactDOMClient.createRoot(document); |
| 415 | root.render( |
| 416 | <> |
| 417 | <title>foo</title> |
| 418 | <html> |
| 419 | <head> |
| 420 | <link rel="foo" href="foo" /> |
| 421 | </head> |
| 422 | <body>hello world</body> |
| 423 | </html> |
| 424 | </>, |
| 425 | ); |
| 426 | try { |
| 427 | await waitForAll([]); |
| 428 | } catch (e) { |
| 429 | // for DOMExceptions that happen when expecting this test to fail we need |
| 430 | // to clear the scheduler first otherwise the expected failure will fail |
| 431 | await waitForAll([]); |
| 432 | throw e; |
| 433 | } |
| 434 | expect(getMeaningfulChildren(document)).toEqual( |
| 435 | <html> |
| 436 | <head> |
| 437 | <title>foo</title> |
| 438 | <link rel="foo" href="foo" /> |
| 439 | </head> |
| 440 | <body>hello world</body> |
| 441 | </html>, |
| 442 | ); |
| 443 | }); |
| 444 | |
| 445 | it('can hydrate non Resources in head when Resources are also inserted there', async () => { |
| 446 | await act(() => { |
| 447 | const {pipe} = renderToPipeableStream( |
| 448 | <html> |
| 449 | <head> |
| 450 | <meta property="foo" content="bar" /> |
| 451 | <link rel="foo" href="bar" onLoad={() => {}} /> |
| 452 | <title>foo</title> |
| 453 | <noscript> |
| 454 | <link rel="icon" href="icon" /> |
| 455 | </noscript> |
| 456 | <base target="foo" href="bar" /> |
| 457 | <script async={true} src="foo" onLoad={() => {}} /> |
| 458 | </head> |
| 459 | <body>foo</body> |
| 460 | </html>, |
| 461 | ); |
| 462 | pipe(writable); |
| 463 | }); |
| 464 | expect(getMeaningfulChildren(document)).toEqual( |
| 465 | <html> |
| 466 | <head> |
| 467 | <meta property="foo" content="bar" /> |
| 468 | <title>foo</title> |
| 469 | <link rel="foo" href="bar" /> |
| 470 | <noscript><link rel="icon" href="icon"></noscript> |
| 471 | <base target="foo" href="bar" /> |
| 472 | <script async="" src="foo" /> |
| 473 | </head> |
| 474 | <body>foo</body> |
| 475 | </html>, |
| 476 | ); |
| 477 | |
| 478 | ReactDOMClient.hydrateRoot( |
| 479 | document, |
| 480 | <html> |
| 481 | <head> |
| 482 | <meta property="foo" content="bar" /> |
| 483 | <link rel="foo" href="bar" onLoad={() => {}} /> |
| 484 | <title>foo</title> |
| 485 | <noscript> |
| 486 | <link rel="icon" href="icon" /> |
| 487 | </noscript> |
| 488 | <base target="foo" href="bar" /> |
| 489 | <script async={true} src="foo" onLoad={() => {}} /> |
| 490 | </head> |
| 491 | <body>foo</body> |
| 492 | </html>, |
| 493 | ); |
| 494 | await waitForAll([]); |
| 495 | expect(getMeaningfulChildren(document)).toEqual( |
| 496 | <html> |
| 497 | <head> |
| 498 | <meta property="foo" content="bar" /> |
| 499 | <title>foo</title> |
| 500 | <link rel="foo" href="bar" /> |
| 501 | <noscript><link rel="icon" href="icon"></noscript> |
| 502 | <base target="foo" href="bar" /> |
| 503 | <script async="" src="foo" /> |
| 504 | </head> |
| 505 | <body>foo</body> |
| 506 | </html>, |
| 507 | ); |
| 508 | }); |
| 509 | |
| 510 | it('warns if you render resource-like elements above <head> or <body>', async () => { |
| 511 | const root = ReactDOMClient.createRoot(document); |
| 512 | |
| 513 | root.render( |
| 514 | <> |
| 515 | <noscript>foo</noscript> |
| 516 | <html> |
| 517 | <body>foo</body> |
| 518 | </html> |
| 519 | </>, |
| 520 | ); |
| 521 | await waitForAll([]); |
| 522 | assertConsoleErrorDev([ |
| 523 | 'Cannot render <noscript> outside the main document. Try moving it into the root <head> tag.', |
| 524 | ]); |
| 525 | |
| 526 | root.render( |
| 527 | <html> |
| 528 | <template>foo</template> |
| 529 | <body>foo</body> |
| 530 | </html>, |
| 531 | ); |
| 532 | await waitForAll([]); |
| 533 | assertConsoleErrorDev([ |
| 534 | 'Cannot render <template> outside the main document. Try moving it into the root <head> tag.\n' + |
| 535 | ' in html (at **)', |
| 536 | 'In HTML, <template> cannot be a child of <html>.\n' + |
| 537 | 'This will cause a hydration error.\n\n' + |
| 538 | '> <html>\n' + |
| 539 | '> <template>\n' + |
| 540 | ' ...\n' + |
| 541 | '\n' + |
| 542 | ' in template (at **)', |
| 543 | ]); |
| 544 | |
| 545 | root.render( |
| 546 | <html> |
| 547 | <body>foo</body> |
| 548 | <style>foo</style> |
| 549 | </html>, |
| 550 | ); |
| 551 | await waitForAll([]); |
| 552 | assertConsoleErrorDev([ |
| 553 | 'Cannot render a <style> outside the main document without knowing its precedence ' + |
| 554 | 'and a unique href key. React can hoist and deduplicate <style> tags if you provide a ' + |
| 555 | '`precedence` prop along with an `href` prop that does not conflict with the `href` ' + |
| 556 | 'values used in any other hoisted <style> or <link rel="stylesheet" ...> tags. ' + |
| 557 | 'Note that hoisting <style> tags is considered an advanced feature that most will not use directly. ' + |
| 558 | 'Consider moving the <style> tag to the <head> or consider adding a `precedence="default"` ' + |
| 559 | 'and `href="some unique resource identifier"`.\n' + |
| 560 | ' in html (at **)', |
| 561 | 'In HTML, <style> cannot be a child of <html>.\n' + |
| 562 | 'This will cause a hydration error.\n\n' + |
| 563 | '> <html>\n' + |
| 564 | ' <body>\n' + |
| 565 | '> <style>\n' + |
| 566 | '\n' + |
| 567 | ' in style (at **)', |
| 568 | ]); |
| 569 | |
| 570 | root.render( |
| 571 | <> |
| 572 | <html> |
| 573 | <body>foo</body> |
| 574 | </html> |
| 575 | <link rel="stylesheet" href="foo" /> |
| 576 | </>, |
| 577 | ); |
| 578 | await waitForAll([]); |
| 579 | assertConsoleErrorDev([ |
| 580 | 'Cannot render a <link rel="stylesheet" /> outside the main document without knowing its precedence. ' + |
| 581 | 'Consider adding precedence="default" or moving it into the root <head> tag.', |
| 582 | ]); |
| 583 | |
| 584 | root.render( |
| 585 | <> |
| 586 | <html> |
| 587 | <body>foo</body> |
| 588 | <script href="foo" /> |
| 589 | </html> |
| 590 | </>, |
| 591 | ); |
| 592 | await waitForAll([]); |
| 593 | assertConsoleErrorDev([ |
| 594 | 'Cannot render a sync or defer <script> outside the main document without knowing its order. ' + |
| 595 | 'Try adding async="" or moving it into the root <head> tag.\n' + |
| 596 | ' in html (at **)', |
| 597 | 'In HTML, <script> cannot be a child of <html>.\n' + |
| 598 | 'This will cause a hydration error.\n' + |
| 599 | '\n' + |
| 600 | '> <html>\n' + |
| 601 | ' <body>\n' + |
| 602 | '> <script href="foo">\n' + |
| 603 | '\n' + |
| 604 | ' in script (at **)', |
| 605 | ...(gate('enableTrustedTypesIntegration') |
| 606 | ? [ |
| 607 | 'Encountered a script tag while rendering React component. ' + |
| 608 | 'Scripts inside React components are never executed when rendering on the client. ' + |
| 609 | 'Consider using template tag instead (https://developer.mozilla.org/en-US/docs/Web/HTML/Element/template).\n' + |
| 610 | ' in script (at **)', |
| 611 | ] |
| 612 | : []), |
| 613 | ]); |
| 614 | |
| 615 | root.render( |
| 616 | <html> |
| 617 | <script async={true} onLoad={() => {}} href="bar" /> |
| 618 | <body>foo</body> |
| 619 | </html>, |
| 620 | ); |
| 621 | await waitForAll([]); |
| 622 | assertConsoleErrorDev([ |
| 623 | 'Cannot render a <script> with onLoad or onError listeners outside the main document. ' + |
| 624 | 'Try removing onLoad={...} and onError={...} or moving it into the root <head> tag or ' + |
| 625 | 'somewhere in the <body>.\n' + |
| 626 | ' in html (at **)', |
| 627 | ]); |
| 628 | |
| 629 | root.render( |
| 630 | <> |
| 631 | <link rel="foo" onLoad={() => {}} href="bar" /> |
| 632 | <html> |
| 633 | <body>foo</body> |
| 634 | </html> |
| 635 | </>, |
| 636 | ); |
| 637 | await waitForAll([]); |
| 638 | assertConsoleErrorDev([ |
| 639 | 'Cannot render a <link> with onLoad or onError listeners outside the main document. ' + |
| 640 | 'Try removing onLoad={...} and onError={...} or moving it into the root <head> tag or ' + |
| 641 | 'somewhere in the <body>.', |
| 642 | ]); |
| 643 | return; |
| 644 | }); |
| 645 | |
| 646 | it('can acquire a resource after releasing it in the same commit', async () => { |
| 647 | const root = ReactDOMClient.createRoot(container); |
| 648 | root.render( |
| 649 | <> |
| 650 | <script async={true} src="foo" /> |
| 651 | </>, |
| 652 | ); |
| 653 | await waitForAll([]); |
| 654 | expect(getMeaningfulChildren(document)).toEqual( |
| 655 | <html> |
| 656 | <head> |
| 657 | <script async="" src="foo" /> |
| 658 | </head> |
| 659 | <body> |
| 660 | <div id="container" /> |
| 661 | </body> |
| 662 | </html>, |
| 663 | ); |
| 664 | |
| 665 | root.render( |
| 666 | <> |
| 667 | {null} |
| 668 | <script data-new="new" async={true} src="foo" /> |
| 669 | </>, |
| 670 | ); |
| 671 | await waitForAll([]); |
| 672 | // we don't see the attribute because the resource is the same and was not reconstructed |
| 673 | expect(getMeaningfulChildren(document)).toEqual( |
| 674 | <html> |
| 675 | <head> |
| 676 | <script async="" src="foo" /> |
| 677 | </head> |
| 678 | <body> |
| 679 | <div id="container" /> |
| 680 | </body> |
| 681 | </html>, |
| 682 | ); |
| 683 | }); |
| 684 | |
| 685 | it('emits an implicit <head> element to hold resources when none is rendered but an <html> is rendered', async () => { |
| 686 | const chunks = []; |
| 687 | |
| 688 | writable.on('data', chunk => { |
| 689 | chunks.push(chunk); |
| 690 | }); |
| 691 | |
| 692 | await act(() => { |
| 693 | const {pipe} = renderToPipeableStream( |
| 694 | <> |
| 695 | <title>foo</title> |
| 696 | <html> |
| 697 | <body>bar</body> |
| 698 | </html> |
| 699 | <script async={true} src="foo" /> |
| 700 | </>, |
| 701 | ); |
| 702 | pipe(writable); |
| 703 | }); |
| 704 | expect(chunks).toEqual([ |
| 705 | '<!DOCTYPE html><html><head><script async="" src="foo"></script>' + |
| 706 | (gate(flags => flags.shouldUseFizzExternalRuntime) |
| 707 | ? '<script src="react-dom/unstable_server-external-runtime" async=""></script>' |
| 708 | : '') + |
| 709 | (gate(flags => flags.enableFizzBlockingRender) |
| 710 | ? '<link rel="expect" href="#_R_" blocking="render"/>' |
| 711 | : '') + |
| 712 | '<title>foo</title></head>' + |
| 713 | '<body>bar' + |
| 714 | (gate(flags => flags.enableFizzBlockingRender) |
| 715 | ? '<template id="_R_"></template>' |
| 716 | : ''), |
| 717 | '</body></html>', |
| 718 | ]); |
| 719 | }); |
| 720 | |
| 721 | it('dedupes if the external runtime is explicitly loaded using preinit', async () => { |
| 722 | const unstable_externalRuntimeSrc = 'src-of-external-runtime'; |
| 723 | function App() { |
| 724 | ReactDOM.preinit(unstable_externalRuntimeSrc, {as: 'script'}); |
| 725 | return ( |
| 726 | <div> |
| 727 | <Suspense fallback={<h1>Loading...</h1>}> |
| 728 | <AsyncText text="Hello" /> |
| 729 | </Suspense> |
| 730 | </div> |
| 731 | ); |
| 732 | } |
| 733 | |
| 734 | await act(() => { |
| 735 | const {pipe} = renderToPipeableStream( |
| 736 | <html> |
| 737 | <head /> |
| 738 | <body> |
| 739 | <App /> |
| 740 | </body> |
| 741 | </html>, |
| 742 | { |
| 743 | unstable_externalRuntimeSrc, |
| 744 | }, |
| 745 | ); |
| 746 | pipe(writable); |
| 747 | }); |
| 748 | |
| 749 | expect( |
| 750 | Array.from(document.querySelectorAll('script[async]')).map( |
| 751 | n => n.outerHTML, |
| 752 | ), |
| 753 | ).toEqual(['<script src="src-of-external-runtime" async=""></script>']); |
| 754 | }); |
| 755 | |
| 756 | it('can send style insertion implementation independent of boundary commpletion instruction implementation', async () => { |
| 757 | await act(() => { |
| 758 | renderToPipeableStream( |
| 759 | <html> |
| 760 | <body> |
| 761 | <Suspense fallback="loading foo..."> |
| 762 | <BlockedOn value="foo">foo</BlockedOn> |
| 763 | </Suspense> |
| 764 | <Suspense fallback="loading bar..."> |
| 765 | <BlockedOn value="bar"> |
| 766 | <link rel="stylesheet" href="bar" precedence="bar" /> |
| 767 | bar |
| 768 | </BlockedOn> |
| 769 | </Suspense> |
| 770 | </body> |
| 771 | </html>, |
| 772 | ).pipe(writable); |
| 773 | }); |
| 774 | |
| 775 | expect(getMeaningfulChildren(document)).toEqual( |
| 776 | <html> |
| 777 | <head /> |
| 778 | <body> |
| 779 | {'loading foo...'} |
| 780 | {'loading bar...'} |
| 781 | </body> |
| 782 | </html>, |
| 783 | ); |
| 784 | |
| 785 | await act(() => { |
| 786 | resolveText('foo'); |
| 787 | }); |
| 788 | expect(getMeaningfulChildren(document)).toEqual( |
| 789 | <html> |
| 790 | <head /> |
| 791 | <body> |
| 792 | foo |
| 793 | {'loading bar...'} |
| 794 | </body> |
| 795 | </html>, |
| 796 | ); |
| 797 | await act(() => { |
| 798 | resolveText('bar'); |
| 799 | }); |
| 800 | expect(getMeaningfulChildren(document)).toEqual( |
| 801 | <html> |
| 802 | <head> |
| 803 | <link rel="stylesheet" href="bar" data-precedence="bar" /> |
| 804 | </head> |
| 805 | <body> |
| 806 | foo |
| 807 | {'loading bar...'} |
| 808 | <link rel="preload" href="bar" as="style" /> |
| 809 | </body> |
| 810 | </html>, |
| 811 | ); |
| 812 | }); |
| 813 | |
| 814 | it('can avoid inserting a late stylesheet if it already rendered on the client', async () => { |
| 815 | await act(() => { |
| 816 | renderToPipeableStream( |
| 817 | <html> |
| 818 | <body> |
| 819 | <Suspense fallback="loading foo..."> |
| 820 | <BlockedOn value="foo"> |
| 821 | <link rel="stylesheet" href="foo" precedence="foo" /> |
| 822 | foo |
| 823 | </BlockedOn> |
| 824 | </Suspense> |
| 825 | <Suspense fallback="loading bar..."> |
| 826 | <BlockedOn value="bar"> |
| 827 | <link rel="stylesheet" href="bar" precedence="bar" /> |
| 828 | bar |
| 829 | </BlockedOn> |
| 830 | </Suspense> |
| 831 | </body> |
| 832 | </html>, |
| 833 | ).pipe(writable); |
| 834 | }); |
| 835 | |
| 836 | expect(getMeaningfulChildren(document)).toEqual( |
| 837 | <html> |
| 838 | <head /> |
| 839 | <body> |
| 840 | {'loading foo...'} |
| 841 | {'loading bar...'} |
| 842 | </body> |
| 843 | </html>, |
| 844 | ); |
| 845 | |
| 846 | ReactDOMClient.hydrateRoot( |
| 847 | document, |
| 848 | <html> |
| 849 | <body> |
| 850 | <link rel="stylesheet" href="foo" precedence="foo" /> |
| 851 | <Suspense fallback="loading foo..."> |
| 852 | <link rel="stylesheet" href="foo" precedence="foo" /> |
| 853 | foo |
| 854 | </Suspense> |
| 855 | <Suspense fallback="loading bar..."> |
| 856 | <link rel="stylesheet" href="bar" precedence="bar" /> |
| 857 | bar |
| 858 | </Suspense> |
| 859 | </body> |
| 860 | </html>, |
| 861 | ); |
| 862 | await waitForAll([]); |
| 863 | loadPreloads(); |
| 864 | await assertLog(['load preload: foo']); |
| 865 | expect(getMeaningfulChildren(document)).toEqual( |
| 866 | <html> |
| 867 | <head> |
| 868 | <link rel="stylesheet" href="foo" data-precedence="foo" /> |
| 869 | <link as="style" href="foo" rel="preload" /> |
| 870 | </head> |
| 871 | <body> |
| 872 | {'loading foo...'} |
| 873 | {'loading bar...'} |
| 874 | </body> |
| 875 | </html>, |
| 876 | ); |
| 877 | |
| 878 | await act(() => { |
| 879 | resolveText('bar'); |
| 880 | }); |
| 881 | await act(() => { |
| 882 | loadStylesheets(); |
| 883 | }); |
| 884 | await assertLog(['load stylesheet: foo', 'load stylesheet: bar']); |
| 885 | expect(getMeaningfulChildren(document)).toEqual( |
| 886 | <html> |
| 887 | <head> |
| 888 | <link rel="stylesheet" href="foo" data-precedence="foo" /> |
| 889 | <link rel="stylesheet" href="bar" data-precedence="bar" /> |
| 890 | <link as="style" href="foo" rel="preload" /> |
| 891 | </head> |
| 892 | <body> |
| 893 | {'loading foo...'} |
| 894 | {'bar'} |
| 895 | <link as="style" href="bar" rel="preload" /> |
| 896 | </body> |
| 897 | </html>, |
| 898 | ); |
| 899 | |
| 900 | await act(() => { |
| 901 | resolveText('foo'); |
| 902 | }); |
| 903 | await act(() => { |
| 904 | loadStylesheets(); |
| 905 | }); |
| 906 | await assertLog([]); |
| 907 | expect(getMeaningfulChildren(document)).toEqual( |
| 908 | <html> |
| 909 | <head> |
| 910 | <link rel="stylesheet" href="foo" data-precedence="foo" /> |
| 911 | <link rel="stylesheet" href="bar" data-precedence="bar" /> |
| 912 | <link as="style" href="foo" rel="preload" /> |
| 913 | </head> |
| 914 | <body> |
| 915 | {'foo'} |
| 916 | {'bar'} |
| 917 | <link as="style" href="bar" rel="preload" /> |
| 918 | <link as="style" href="foo" rel="preload" /> |
| 919 | </body> |
| 920 | </html>, |
| 921 | ); |
| 922 | }); |
| 923 | |
| 924 | it('can hoist <link rel="stylesheet" .../> and <style /> tags together, respecting order of discovery', async () => { |
| 925 | const css = ` |
| 926 | body { |
| 927 | background-color: red; |
| 928 | }`; |
| 929 | |
| 930 | await act(() => { |
| 931 | renderToPipeableStream( |
| 932 | <html> |
| 933 | <body> |
| 934 | <link rel="stylesheet" href="one1" precedence="one" /> |
| 935 | <style href="two1" precedence="two"> |
| 936 | {css} |
| 937 | </style> |
| 938 | <link rel="stylesheet" href="three1" precedence="three" /> |
| 939 | <style href="four1" precedence="four"> |
| 940 | {css} |
| 941 | </style> |
| 942 | <Suspense> |
| 943 | <BlockedOn value="block"> |
| 944 | <link rel="stylesheet" href="one2" precedence="one" /> |
| 945 | <link rel="stylesheet" href="two2" precedence="two" /> |
| 946 | <style href="three2" precedence="three"> |
| 947 | {css} |
| 948 | </style> |
| 949 | <style href="four2" precedence="four"> |
| 950 | {css} |
| 951 | </style> |
| 952 | <link rel="stylesheet" href="five1" precedence="five" /> |
| 953 | </BlockedOn> |
| 954 | </Suspense> |
| 955 | <Suspense> |
| 956 | <BlockedOn value="block2"> |
| 957 | <style href="one3" precedence="one"> |
| 958 | {css} |
| 959 | </style> |
| 960 | <style href="two3" precedence="two"> |
| 961 | {css} |
| 962 | </style> |
| 963 | <link rel="stylesheet" href="three3" precedence="three" /> |
| 964 | <link rel="stylesheet" href="four3" precedence="four" /> |
| 965 | <style href="six1" precedence="six"> |
| 966 | {css} |
| 967 | </style> |
| 968 | </BlockedOn> |
| 969 | </Suspense> |
| 970 | <Suspense> |
| 971 | <BlockedOn value="block again"> |
| 972 | <link rel="stylesheet" href="one2" precedence="one" /> |
| 973 | <link rel="stylesheet" href="two2" precedence="two" /> |
| 974 | <style href="three2" precedence="three"> |
| 975 | {css} |
| 976 | </style> |
| 977 | <style href="four2" precedence="four"> |
| 978 | {css} |
| 979 | </style> |
| 980 | <link rel="stylesheet" href="five1" precedence="five" /> |
| 981 | </BlockedOn> |
| 982 | </Suspense> |
| 983 | </body> |
| 984 | </html>, |
| 985 | ).pipe(writable); |
| 986 | }); |
| 987 | |
| 988 | expect(getMeaningfulChildren(document)).toEqual( |
| 989 | <html> |
| 990 | <head> |
| 991 | <link rel="stylesheet" href="one1" data-precedence="one" /> |
| 992 | <style data-href="two1" data-precedence="two"> |
| 993 | {css} |
| 994 | </style> |
| 995 | <link rel="stylesheet" href="three1" data-precedence="three" /> |
| 996 | <style data-href="four1" data-precedence="four"> |
| 997 | {css} |
| 998 | </style> |
| 999 | </head> |
| 1000 | <body /> |
| 1001 | </html>, |
| 1002 | ); |
| 1003 | |
| 1004 | await act(() => { |
| 1005 | resolveText('block'); |
| 1006 | }); |
| 1007 | |
| 1008 | expect(getMeaningfulChildren(document)).toEqual( |
| 1009 | <html> |
| 1010 | <head> |
| 1011 | <link rel="stylesheet" href="one1" data-precedence="one" /> |
| 1012 | <link rel="stylesheet" href="one2" data-precedence="one" /> |
| 1013 | <style data-href="two1" data-precedence="two"> |
| 1014 | {css} |
| 1015 | </style> |
| 1016 | <link rel="stylesheet" href="two2" data-precedence="two" /> |
| 1017 | <link rel="stylesheet" href="three1" data-precedence="three" /> |
| 1018 | <style data-href="three2" data-precedence="three"> |
| 1019 | {css} |
| 1020 | </style> |
| 1021 | <style data-href="four1" data-precedence="four"> |
| 1022 | {css} |
| 1023 | </style> |
| 1024 | <style data-href="four2" data-precedence="four"> |
| 1025 | {css} |
| 1026 | </style> |
| 1027 | <link rel="stylesheet" href="five1" data-precedence="five" /> |
| 1028 | </head> |
| 1029 | <body> |
| 1030 | <link rel="preload" href="one2" as="style" /> |
| 1031 | <link rel="preload" href="two2" as="style" /> |
| 1032 | <link rel="preload" href="five1" as="style" /> |
| 1033 | </body> |
| 1034 | </html>, |
| 1035 | ); |
| 1036 | |
| 1037 | await act(() => { |
| 1038 | resolveText('block2'); |
| 1039 | }); |
| 1040 | |
| 1041 | expect(getMeaningfulChildren(document)).toEqual( |
| 1042 | <html> |
| 1043 | <head> |
| 1044 | <link rel="stylesheet" href="one1" data-precedence="one" /> |
| 1045 | <link rel="stylesheet" href="one2" data-precedence="one" /> |
| 1046 | <style data-href="one3" data-precedence="one"> |
| 1047 | {css} |
| 1048 | </style> |
| 1049 | <style data-href="two1" data-precedence="two"> |
| 1050 | {css} |
| 1051 | </style> |
| 1052 | <link rel="stylesheet" href="two2" data-precedence="two" /> |
| 1053 | <style data-href="two3" data-precedence="two"> |
| 1054 | {css} |
| 1055 | </style> |
| 1056 | <link rel="stylesheet" href="three1" data-precedence="three" /> |
| 1057 | <style data-href="three2" data-precedence="three"> |
| 1058 | {css} |
| 1059 | </style> |
| 1060 | <link rel="stylesheet" href="three3" data-precedence="three" /> |
| 1061 | <style data-href="four1" data-precedence="four"> |
| 1062 | {css} |
| 1063 | </style> |
| 1064 | <style data-href="four2" data-precedence="four"> |
| 1065 | {css} |
| 1066 | </style> |
| 1067 | <link rel="stylesheet" href="four3" data-precedence="four" /> |
| 1068 | <link rel="stylesheet" href="five1" data-precedence="five" /> |
| 1069 | <style data-href="six1" data-precedence="six"> |
| 1070 | {css} |
| 1071 | </style> |
| 1072 | </head> |
| 1073 | <body> |
| 1074 | <link rel="preload" href="one2" as="style" /> |
| 1075 | <link rel="preload" href="two2" as="style" /> |
| 1076 | <link rel="preload" href="five1" as="style" /> |
| 1077 | <link rel="preload" href="three3" as="style" /> |
| 1078 | <link rel="preload" href="four3" as="style" /> |
| 1079 | </body> |
| 1080 | </html>, |
| 1081 | ); |
| 1082 | |
| 1083 | await act(() => { |
| 1084 | resolveText('block again'); |
| 1085 | }); |
| 1086 | |
| 1087 | expect(getMeaningfulChildren(document)).toEqual( |
| 1088 | <html> |
| 1089 | <head> |
| 1090 | <link rel="stylesheet" href="one1" data-precedence="one" /> |
| 1091 | <link rel="stylesheet" href="one2" data-precedence="one" /> |
| 1092 | <style data-href="one3" data-precedence="one"> |
| 1093 | {css} |
| 1094 | </style> |
| 1095 | <style data-href="two1" data-precedence="two"> |
| 1096 | {css} |
| 1097 | </style> |
| 1098 | <link rel="stylesheet" href="two2" data-precedence="two" /> |
| 1099 | <style data-href="two3" data-precedence="two"> |
| 1100 | {css} |
| 1101 | </style> |
| 1102 | <link rel="stylesheet" href="three1" data-precedence="three" /> |
| 1103 | <style data-href="three2" data-precedence="three"> |
| 1104 | {css} |
| 1105 | </style> |
| 1106 | <link rel="stylesheet" href="three3" data-precedence="three" /> |
| 1107 | <style data-href="four1" data-precedence="four"> |
| 1108 | {css} |
| 1109 | </style> |
| 1110 | <style data-href="four2" data-precedence="four"> |
| 1111 | {css} |
| 1112 | </style> |
| 1113 | <link rel="stylesheet" href="four3" data-precedence="four" /> |
| 1114 | <link rel="stylesheet" href="five1" data-precedence="five" /> |
| 1115 | <style data-href="six1" data-precedence="six"> |
| 1116 | {css} |
| 1117 | </style> |
| 1118 | </head> |
| 1119 | <body> |
| 1120 | <link rel="preload" href="one2" as="style" /> |
| 1121 | <link rel="preload" href="two2" as="style" /> |
| 1122 | <link rel="preload" href="five1" as="style" /> |
| 1123 | <link rel="preload" href="three3" as="style" /> |
| 1124 | <link rel="preload" href="four3" as="style" /> |
| 1125 | </body> |
| 1126 | </html>, |
| 1127 | ); |
| 1128 | |
| 1129 | ReactDOMClient.hydrateRoot( |
| 1130 | document, |
| 1131 | <html> |
| 1132 | <body> |
| 1133 | <link rel="stylesheet" href="one4" precedence="one" /> |
| 1134 | <style href="two4" precedence="two"> |
| 1135 | {css} |
| 1136 | </style> |
| 1137 | <link rel="stylesheet" href="three4" precedence="three" /> |
| 1138 | <style href="four4" precedence="four"> |
| 1139 | {css} |
| 1140 | </style> |
| 1141 | <link rel="stylesheet" href="seven1" precedence="seven" /> |
| 1142 | <style href="eight1" precedence="eight"> |
| 1143 | {css} |
| 1144 | </style> |
| 1145 | </body> |
| 1146 | </html>, |
| 1147 | ); |
| 1148 | await waitForAll([]); |
| 1149 | await act(() => { |
| 1150 | loadPreloads(); |
| 1151 | loadStylesheets(); |
| 1152 | }); |
| 1153 | await assertLog([ |
| 1154 | 'load preload: one4', |
| 1155 | 'load preload: three4', |
| 1156 | 'load preload: seven1', |
| 1157 | 'load preload: one2', |
| 1158 | 'load preload: two2', |
| 1159 | 'load preload: five1', |
| 1160 | 'load preload: three3', |
| 1161 | 'load preload: four3', |
| 1162 | 'load stylesheet: one1', |
| 1163 | 'load stylesheet: one2', |
| 1164 | 'load stylesheet: one4', |
| 1165 | 'load stylesheet: two2', |
| 1166 | 'load stylesheet: three1', |
| 1167 | 'load stylesheet: three3', |
| 1168 | 'load stylesheet: three4', |
| 1169 | 'load stylesheet: four3', |
| 1170 | 'load stylesheet: five1', |
| 1171 | 'load stylesheet: seven1', |
| 1172 | ]); |
| 1173 | |
| 1174 | expect(getMeaningfulChildren(document)).toEqual( |
| 1175 | <html> |
| 1176 | <head> |
| 1177 | <link rel="stylesheet" href="one1" data-precedence="one" /> |
| 1178 | <link rel="stylesheet" href="one2" data-precedence="one" /> |
| 1179 | <style data-href="one3" data-precedence="one"> |
| 1180 | {css} |
| 1181 | </style> |
| 1182 | <link rel="stylesheet" href="one4" data-precedence="one" /> |
| 1183 | <style data-href="two1" data-precedence="two"> |
| 1184 | {css} |
| 1185 | </style> |
| 1186 | <link rel="stylesheet" href="two2" data-precedence="two" /> |
| 1187 | <style data-href="two3" data-precedence="two"> |
| 1188 | {css} |
| 1189 | </style> |
| 1190 | <style data-href="two4" data-precedence="two"> |
| 1191 | {css} |
| 1192 | </style> |
| 1193 | <link rel="stylesheet" href="three1" data-precedence="three" /> |
| 1194 | <style data-href="three2" data-precedence="three"> |
| 1195 | {css} |
| 1196 | </style> |
| 1197 | <link rel="stylesheet" href="three3" data-precedence="three" /> |
| 1198 | <link rel="stylesheet" href="three4" data-precedence="three" /> |
| 1199 | <style data-href="four1" data-precedence="four"> |
| 1200 | {css} |
| 1201 | </style> |
| 1202 | <style data-href="four2" data-precedence="four"> |
| 1203 | {css} |
| 1204 | </style> |
| 1205 | <link rel="stylesheet" href="four3" data-precedence="four" /> |
| 1206 | <style data-href="four4" data-precedence="four"> |
| 1207 | {css} |
| 1208 | </style> |
| 1209 | <link rel="stylesheet" href="five1" data-precedence="five" /> |
| 1210 | <style data-href="six1" data-precedence="six"> |
| 1211 | {css} |
| 1212 | </style> |
| 1213 | <link rel="stylesheet" href="seven1" data-precedence="seven" /> |
| 1214 | <style data-href="eight1" data-precedence="eight"> |
| 1215 | {css} |
| 1216 | </style> |
| 1217 | <link rel="preload" href="one4" as="style" /> |
| 1218 | <link rel="preload" href="three4" as="style" /> |
| 1219 | <link rel="preload" href="seven1" as="style" /> |
| 1220 | </head> |
| 1221 | <body> |
| 1222 | <link rel="preload" href="one2" as="style" /> |
| 1223 | <link rel="preload" href="two2" as="style" /> |
| 1224 | <link rel="preload" href="five1" as="style" /> |
| 1225 | <link rel="preload" href="three3" as="style" /> |
| 1226 | <link rel="preload" href="four3" as="style" /> |
| 1227 | </body> |
| 1228 | </html>, |
| 1229 | ); |
| 1230 | }); |
| 1231 | |
| 1232 | it('client renders a boundary if a style Resource dependency fails to load', async () => { |
| 1233 | function App() { |
| 1234 | return ( |
| 1235 | <html> |
| 1236 | <head /> |
| 1237 | <body> |
| 1238 | <Suspense fallback="loading..."> |
| 1239 | <BlockedOn value="unblock"> |
| 1240 | <link rel="stylesheet" href="foo" precedence="arbitrary" /> |
| 1241 | <link rel="stylesheet" href="bar" precedence="arbitrary" /> |
| 1242 | Hello |
| 1243 | </BlockedOn> |
| 1244 | </Suspense> |
| 1245 | </body> |
| 1246 | </html> |
| 1247 | ); |
| 1248 | } |
| 1249 | await act(() => { |
| 1250 | const {pipe} = renderToPipeableStream(<App />); |
| 1251 | pipe(writable); |
| 1252 | }); |
| 1253 | |
| 1254 | expect(getMeaningfulChildren(document)).toEqual( |
| 1255 | <html> |
| 1256 | <head /> |
| 1257 | <body>loading...</body> |
| 1258 | </html>, |
| 1259 | ); |
| 1260 | |
| 1261 | await act(() => { |
| 1262 | resolveText('unblock'); |
| 1263 | }); |
| 1264 | |
| 1265 | expect(getMeaningfulChildren(document)).toEqual( |
| 1266 | <html> |
| 1267 | <head> |
| 1268 | <link rel="stylesheet" href="foo" data-precedence="arbitrary" /> |
| 1269 | <link rel="stylesheet" href="bar" data-precedence="arbitrary" /> |
| 1270 | </head> |
| 1271 | <body> |
| 1272 | loading... |
| 1273 | <link rel="preload" href="foo" as="style" /> |
| 1274 | <link rel="preload" href="bar" as="style" /> |
| 1275 | </body> |
| 1276 | </html>, |
| 1277 | ); |
| 1278 | |
| 1279 | errorStylesheets(['bar']); |
| 1280 | assertLog(['error stylesheet: bar']); |
| 1281 | |
| 1282 | await waitForAll([]); |
| 1283 | |
| 1284 | const boundaryTemplateInstance = document.getElementById('B:0'); |
| 1285 | const suspenseInstance = boundaryTemplateInstance.previousSibling; |
| 1286 | |
| 1287 | expect(suspenseInstance.data).toEqual('$!'); |
| 1288 | expect(boundaryTemplateInstance.dataset.dgst).toBe('CSS failed to load'); |
| 1289 | |
| 1290 | expect(getMeaningfulChildren(document)).toEqual( |
| 1291 | <html> |
| 1292 | <head> |
| 1293 | <link rel="stylesheet" href="foo" data-precedence="arbitrary" /> |
| 1294 | <link rel="stylesheet" href="bar" data-precedence="arbitrary" /> |
| 1295 | </head> |
| 1296 | <body> |
| 1297 | loading... |
| 1298 | <link rel="preload" href="foo" as="style" /> |
| 1299 | <link rel="preload" href="bar" as="style" /> |
| 1300 | </body> |
| 1301 | </html>, |
| 1302 | ); |
| 1303 | |
| 1304 | const errors = []; |
| 1305 | ReactDOMClient.hydrateRoot(document, <App />, { |
| 1306 | onRecoverableError(err, errInfo) { |
| 1307 | errors.push(err.message); |
| 1308 | errors.push(err.digest); |
| 1309 | }, |
| 1310 | }); |
| 1311 | await waitForAll([]); |
| 1312 | // When binding a stylesheet that was SSR'd in a boundary reveal there is a loadingState promise |
| 1313 | // We need to use that promise to resolve the suspended commit because we don't know if the load or error |
| 1314 | // events have already fired. This requires the load to be awaited for the commit to have a chance to flush |
| 1315 | // We could change this by tracking the loadingState's fulfilled status directly on the loadingState similar |
| 1316 | // to thenables however this slightly increases the fizz runtime code size. |
| 1317 | await clientAct(() => loadStylesheets()); |
| 1318 | assertLog(['load stylesheet: foo']); |
| 1319 | expect(getMeaningfulChildren(document)).toEqual( |
| 1320 | <html> |
| 1321 | <head> |
| 1322 | <link rel="stylesheet" href="foo" data-precedence="arbitrary" /> |
| 1323 | <link rel="stylesheet" href="bar" data-precedence="arbitrary" /> |
| 1324 | </head> |
| 1325 | <body> |
| 1326 | <link rel="preload" href="foo" as="style" /> |
| 1327 | <link rel="preload" href="bar" as="style" /> |
| 1328 | Hello |
| 1329 | </body> |
| 1330 | </html>, |
| 1331 | ); |
| 1332 | expect(errors).toEqual([ |
| 1333 | 'The server could not finish this Suspense boundary, likely due to an error during server rendering. Switched to client rendering.', |
| 1334 | 'CSS failed to load', |
| 1335 | ]); |
| 1336 | }); |
| 1337 | |
| 1338 | it('treats stylesheet links with a precedence as a resource', async () => { |
| 1339 | await act(() => { |
| 1340 | const {pipe} = renderToPipeableStream( |
| 1341 | <html> |
| 1342 | <head /> |
| 1343 | <body> |
| 1344 | <link rel="stylesheet" href="foo" precedence="arbitrary" /> |
| 1345 | Hello |
| 1346 | </body> |
| 1347 | </html>, |
| 1348 | ); |
| 1349 | pipe(writable); |
| 1350 | }); |
| 1351 | expect(getMeaningfulChildren(document)).toEqual( |
| 1352 | <html> |
| 1353 | <head> |
| 1354 | <link rel="stylesheet" href="foo" data-precedence="arbitrary" /> |
| 1355 | </head> |
| 1356 | <body>Hello</body> |
| 1357 | </html>, |
| 1358 | ); |
| 1359 | |
| 1360 | ReactDOMClient.hydrateRoot( |
| 1361 | document, |
| 1362 | <html> |
| 1363 | <head /> |
| 1364 | <body>Hello</body> |
| 1365 | </html>, |
| 1366 | ); |
| 1367 | await waitForAll([]); |
| 1368 | expect(getMeaningfulChildren(document)).toEqual( |
| 1369 | <html> |
| 1370 | <head> |
| 1371 | <link rel="stylesheet" href="foo" data-precedence="arbitrary" /> |
| 1372 | </head> |
| 1373 | <body>Hello</body> |
| 1374 | </html>, |
| 1375 | ); |
| 1376 | }); |
| 1377 | |
| 1378 | it('inserts text separators following text when followed by an element that is converted to a resource and thus removed from the html inline', async () => { |
| 1379 | // If you render many of these as siblings the values get emitted as a single text with no separator sometimes |
| 1380 | // because the link gets elided as a resource |
| 1381 | function AsyncTextWithResource({text, href, precedence}) { |
| 1382 | const value = readText(text); |
| 1383 | return ( |
| 1384 | <> |
| 1385 | {value} |
| 1386 | <link rel="stylesheet" href={href} precedence={precedence} /> |
| 1387 | </> |
| 1388 | ); |
| 1389 | } |
| 1390 | |
| 1391 | await act(() => { |
| 1392 | const {pipe} = renderToPipeableStream( |
| 1393 | <html> |
| 1394 | <head /> |
| 1395 | <body> |
| 1396 | <AsyncTextWithResource text="foo" href="foo" precedence="one" /> |
| 1397 | <AsyncTextWithResource text="bar" href="bar" precedence="two" /> |
| 1398 | <AsyncTextWithResource text="baz" href="baz" precedence="three" /> |
| 1399 | </body> |
| 1400 | </html>, |
| 1401 | ); |
| 1402 | pipe(writable); |
| 1403 | resolveText('foo'); |
| 1404 | resolveText('bar'); |
| 1405 | resolveText('baz'); |
| 1406 | }); |
| 1407 | |
| 1408 | expect(getMeaningfulChildren(document)).toEqual( |
| 1409 | <html> |
| 1410 | <head> |
| 1411 | <link rel="stylesheet" href="foo" data-precedence="one" /> |
| 1412 | <link rel="stylesheet" href="bar" data-precedence="two" /> |
| 1413 | <link rel="stylesheet" href="baz" data-precedence="three" /> |
| 1414 | </head> |
| 1415 | <body> |
| 1416 | {'foo'} |
| 1417 | {'bar'} |
| 1418 | {'baz'} |
| 1419 | </body> |
| 1420 | </html>, |
| 1421 | ); |
| 1422 | }); |
| 1423 | |
| 1424 | it('hoists late stylesheets the correct precedence', async () => { |
| 1425 | function PresetPrecedence() { |
| 1426 | ReactDOM.preinit('preset', {as: 'style', precedence: 'preset'}); |
| 1427 | } |
| 1428 | await act(() => { |
| 1429 | const {pipe} = renderToPipeableStream( |
| 1430 | <html> |
| 1431 | <head /> |
| 1432 | <body> |
| 1433 | <link rel="stylesheet" href="initial" precedence="one" /> |
| 1434 | <PresetPrecedence /> |
| 1435 | <div> |
| 1436 | <Suspense fallback="loading foo bar..."> |
| 1437 | <div>foo</div> |
| 1438 | <link rel="stylesheet" href="foo" precedence="one" /> |
| 1439 | <BlockedOn value="bar"> |
| 1440 | <div>bar</div> |
| 1441 | <link rel="stylesheet" href="bar" precedence="default" /> |
| 1442 | </BlockedOn> |
| 1443 | </Suspense> |
| 1444 | </div> |
| 1445 | <div> |
| 1446 | <Suspense fallback="loading bar baz qux..."> |
| 1447 | <BlockedOn value="bar"> |
| 1448 | <div>bar</div> |
| 1449 | <link rel="stylesheet" href="bar" precedence="default" /> |
| 1450 | </BlockedOn> |
| 1451 | <BlockedOn value="baz"> |
| 1452 | <div>baz</div> |
| 1453 | <link rel="stylesheet" href="baz" precedence="two" /> |
| 1454 | </BlockedOn> |
| 1455 | <BlockedOn value="qux"> |
| 1456 | <div>qux</div> |
| 1457 | <link rel="stylesheet" href="qux" precedence="one" /> |
| 1458 | </BlockedOn> |
| 1459 | </Suspense> |
| 1460 | </div> |
| 1461 | <div> |
| 1462 | <Suspense fallback="loading bar baz qux..."> |
| 1463 | <BlockedOn value="unblock"> |
| 1464 | <BlockedOn value="bar"> |
| 1465 | <div>bar</div> |
| 1466 | <link rel="stylesheet" href="bar" precedence="default" /> |
| 1467 | </BlockedOn> |
| 1468 | <BlockedOn value="baz"> |
| 1469 | <div>baz</div> |
| 1470 | <link rel="stylesheet" href="baz" precedence="two" /> |
| 1471 | </BlockedOn> |
| 1472 | <BlockedOn value="qux"> |
| 1473 | <div>qux</div> |
| 1474 | <link rel="stylesheet" href="qux" precedence="one" /> |
| 1475 | </BlockedOn> |
| 1476 | </BlockedOn> |
| 1477 | </Suspense> |
| 1478 | </div> |
| 1479 | </body> |
| 1480 | </html>, |
| 1481 | ); |
| 1482 | pipe(writable); |
| 1483 | }); |
| 1484 | |
| 1485 | expect(getMeaningfulChildren(document)).toEqual( |
| 1486 | <html> |
| 1487 | <head> |
| 1488 | <link rel="stylesheet" href="initial" data-precedence="one" /> |
| 1489 | <link rel="stylesheet" href="foo" data-precedence="one" /> |
| 1490 | <link rel="stylesheet" href="preset" data-precedence="preset" /> |
| 1491 | </head> |
| 1492 | <body> |
| 1493 | <div>loading foo bar...</div> |
| 1494 | <div>loading bar baz qux...</div> |
| 1495 | <div>loading bar baz qux...</div> |
| 1496 | </body> |
| 1497 | </html>, |
| 1498 | ); |
| 1499 | |
| 1500 | await act(() => { |
| 1501 | resolveText('foo'); |
| 1502 | resolveText('bar'); |
| 1503 | }); |
| 1504 | |
| 1505 | expect(getMeaningfulChildren(document)).toEqual( |
| 1506 | <html> |
| 1507 | <head> |
| 1508 | <link rel="stylesheet" href="initial" data-precedence="one" /> |
| 1509 | <link rel="stylesheet" href="foo" data-precedence="one" /> |
| 1510 | <link rel="stylesheet" href="preset" data-precedence="preset" /> |
| 1511 | <link rel="stylesheet" href="bar" data-precedence="default" /> |
| 1512 | </head> |
| 1513 | <body> |
| 1514 | <div>loading foo bar...</div> |
| 1515 | <div>loading bar baz qux...</div> |
| 1516 | <div>loading bar baz qux...</div> |
| 1517 | <link rel="preload" href="bar" as="style" /> |
| 1518 | </body> |
| 1519 | </html>, |
| 1520 | ); |
| 1521 | |
| 1522 | await act(() => { |
| 1523 | const link = document.querySelector('link[rel="stylesheet"][href="foo"]'); |
| 1524 | const event = document.createEvent('Events'); |
| 1525 | event.initEvent('load', true, true); |
| 1526 | link.dispatchEvent(event); |
| 1527 | }); |
| 1528 | |
| 1529 | expect(getMeaningfulChildren(document)).toEqual( |
| 1530 | <html> |
| 1531 | <head> |
| 1532 | <link rel="stylesheet" href="initial" data-precedence="one" /> |
| 1533 | <link rel="stylesheet" href="foo" data-precedence="one" /> |
| 1534 | <link rel="stylesheet" href="preset" data-precedence="preset" /> |
| 1535 | <link rel="stylesheet" href="bar" data-precedence="default" /> |
| 1536 | </head> |
| 1537 | <body> |
| 1538 | <div>loading foo bar...</div> |
| 1539 | <div>loading bar baz qux...</div> |
| 1540 | <div>loading bar baz qux...</div> |
| 1541 | <link rel="preload" href="bar" as="style" /> |
| 1542 | </body> |
| 1543 | </html>, |
| 1544 | ); |
| 1545 | |
| 1546 | await act(() => { |
| 1547 | const link = document.querySelector('link[rel="stylesheet"][href="bar"]'); |
| 1548 | const event = document.createEvent('Events'); |
| 1549 | event.initEvent('load', true, true); |
| 1550 | link.dispatchEvent(event); |
| 1551 | }); |
| 1552 | |
| 1553 | expect(getMeaningfulChildren(document)).toEqual( |
| 1554 | <html> |
| 1555 | <head> |
| 1556 | <link rel="stylesheet" href="initial" data-precedence="one" /> |
| 1557 | <link rel="stylesheet" href="foo" data-precedence="one" /> |
| 1558 | <link rel="stylesheet" href="preset" data-precedence="preset" /> |
| 1559 | <link rel="stylesheet" href="bar" data-precedence="default" /> |
| 1560 | </head> |
| 1561 | <body> |
| 1562 | <div> |
| 1563 | <div>foo</div> |
| 1564 | <div>bar</div> |
| 1565 | </div> |
| 1566 | <div>loading bar baz qux...</div> |
| 1567 | <div>loading bar baz qux...</div> |
| 1568 | <link rel="preload" href="bar" as="style" /> |
| 1569 | </body> |
| 1570 | </html>, |
| 1571 | ); |
| 1572 | |
| 1573 | await act(() => { |
| 1574 | resolveText('baz'); |
| 1575 | }); |
| 1576 | |
| 1577 | expect(getMeaningfulChildren(document)).toEqual( |
| 1578 | <html> |
| 1579 | <head> |
| 1580 | <link rel="stylesheet" href="initial" data-precedence="one" /> |
| 1581 | <link rel="stylesheet" href="foo" data-precedence="one" /> |
| 1582 | <link rel="stylesheet" href="preset" data-precedence="preset" /> |
| 1583 | <link rel="stylesheet" href="bar" data-precedence="default" /> |
| 1584 | </head> |
| 1585 | <body> |
| 1586 | <div> |
| 1587 | <div>foo</div> |
| 1588 | <div>bar</div> |
| 1589 | </div> |
| 1590 | <div>loading bar baz qux...</div> |
| 1591 | <div>loading bar baz qux...</div> |
| 1592 | <link rel="preload" as="style" href="bar" /> |
| 1593 | <link rel="preload" as="style" href="baz" /> |
| 1594 | </body> |
| 1595 | </html>, |
| 1596 | ); |
| 1597 | |
| 1598 | await act(() => { |
| 1599 | resolveText('qux'); |
| 1600 | }); |
| 1601 | |
| 1602 | expect(getMeaningfulChildren(document)).toEqual( |
| 1603 | <html> |
| 1604 | <head> |
| 1605 | <link rel="stylesheet" href="initial" data-precedence="one" /> |
| 1606 | <link rel="stylesheet" href="foo" data-precedence="one" /> |
| 1607 | <link rel="stylesheet" href="qux" data-precedence="one" /> |
| 1608 | <link rel="stylesheet" href="preset" data-precedence="preset" /> |
| 1609 | <link rel="stylesheet" href="bar" data-precedence="default" /> |
| 1610 | <link rel="stylesheet" href="baz" data-precedence="two" /> |
| 1611 | </head> |
| 1612 | <body> |
| 1613 | <div> |
| 1614 | <div>foo</div> |
| 1615 | <div>bar</div> |
| 1616 | </div> |
| 1617 | <div>loading bar baz qux...</div> |
| 1618 | <div>loading bar baz qux...</div> |
| 1619 | <link rel="preload" as="style" href="bar" /> |
| 1620 | <link rel="preload" as="style" href="baz" /> |
| 1621 | <link rel="preload" as="style" href="qux" /> |
| 1622 | </body> |
| 1623 | </html>, |
| 1624 | ); |
| 1625 | |
| 1626 | await act(() => { |
| 1627 | const bazlink = document.querySelector( |
| 1628 | 'link[rel="stylesheet"][href="baz"]', |
| 1629 | ); |
| 1630 | const quxlink = document.querySelector( |
| 1631 | 'link[rel="stylesheet"][href="qux"]', |
| 1632 | ); |
| 1633 | const presetLink = document.querySelector( |
| 1634 | 'link[rel="stylesheet"][href="preset"]', |
| 1635 | ); |
| 1636 | const event = document.createEvent('Events'); |
| 1637 | event.initEvent('load', true, true); |
| 1638 | bazlink.dispatchEvent(event); |
| 1639 | quxlink.dispatchEvent(event); |
| 1640 | presetLink.dispatchEvent(event); |
| 1641 | }); |
| 1642 | |
| 1643 | expect(getMeaningfulChildren(document)).toEqual( |
| 1644 | <html> |
| 1645 | <head> |
| 1646 | <link rel="stylesheet" href="initial" data-precedence="one" /> |
| 1647 | <link rel="stylesheet" href="foo" data-precedence="one" /> |
| 1648 | <link rel="stylesheet" href="qux" data-precedence="one" /> |
| 1649 | <link rel="stylesheet" href="preset" data-precedence="preset" /> |
| 1650 | <link rel="stylesheet" href="bar" data-precedence="default" /> |
| 1651 | <link rel="stylesheet" href="baz" data-precedence="two" /> |
| 1652 | </head> |
| 1653 | <body> |
| 1654 | <div> |
| 1655 | <div>foo</div> |
| 1656 | <div>bar</div> |
| 1657 | </div> |
| 1658 | <div> |
| 1659 | <div>bar</div> |
| 1660 | <div>baz</div> |
| 1661 | <div>qux</div> |
| 1662 | </div> |
| 1663 | <div>loading bar baz qux...</div> |
| 1664 | <link rel="preload" as="style" href="bar" /> |
| 1665 | <link rel="preload" as="style" href="baz" /> |
| 1666 | <link rel="preload" as="style" href="qux" /> |
| 1667 | </body> |
| 1668 | </html>, |
| 1669 | ); |
| 1670 | |
| 1671 | await act(() => { |
| 1672 | resolveText('unblock'); |
| 1673 | }); |
| 1674 | |
| 1675 | expect(getMeaningfulChildren(document)).toEqual( |
| 1676 | <html> |
| 1677 | <head> |
| 1678 | <link rel="stylesheet" href="initial" data-precedence="one" /> |
| 1679 | <link rel="stylesheet" href="foo" data-precedence="one" /> |
| 1680 | <link rel="stylesheet" href="qux" data-precedence="one" /> |
| 1681 | <link rel="stylesheet" href="preset" data-precedence="preset" /> |
| 1682 | <link rel="stylesheet" href="bar" data-precedence="default" /> |
| 1683 | <link rel="stylesheet" href="baz" data-precedence="two" /> |
| 1684 | </head> |
| 1685 | <body> |
| 1686 | <div> |
| 1687 | <div>foo</div> |
| 1688 | <div>bar</div> |
| 1689 | </div> |
| 1690 | <div> |
| 1691 | <div>bar</div> |
| 1692 | <div>baz</div> |
| 1693 | <div>qux</div> |
| 1694 | </div> |
| 1695 | <div> |
| 1696 | <div>bar</div> |
| 1697 | <div>baz</div> |
| 1698 | <div>qux</div> |
| 1699 | </div> |
| 1700 | <link rel="preload" as="style" href="bar" /> |
| 1701 | <link rel="preload" as="style" href="baz" /> |
| 1702 | <link rel="preload" as="style" href="qux" /> |
| 1703 | </body> |
| 1704 | </html>, |
| 1705 | ); |
| 1706 | }); |
| 1707 | |
| 1708 | it('normalizes stylesheet resource precedence for all boundaries inlined as part of the shell flush', async () => { |
| 1709 | await act(() => { |
| 1710 | const {pipe} = renderToPipeableStream( |
| 1711 | <html> |
| 1712 | <head /> |
| 1713 | <body> |
| 1714 | <div> |
| 1715 | outer |
| 1716 | <link rel="stylesheet" href="1one" precedence="one" /> |
| 1717 | <link rel="stylesheet" href="1two" precedence="two" /> |
| 1718 | <link rel="stylesheet" href="1three" precedence="three" /> |
| 1719 | <link rel="stylesheet" href="1four" precedence="four" /> |
| 1720 | <Suspense fallback={null}> |
| 1721 | <div> |
| 1722 | middle |
| 1723 | <link rel="stylesheet" href="2one" precedence="one" /> |
| 1724 | <link rel="stylesheet" href="2two" precedence="two" /> |
| 1725 | <link rel="stylesheet" href="2three" precedence="three" /> |
| 1726 | <link rel="stylesheet" href="2four" precedence="four" /> |
| 1727 | <Suspense fallback={null}> |
| 1728 | <div> |
| 1729 | inner |
| 1730 | <link rel="stylesheet" href="3five" precedence="five" /> |
| 1731 | <link rel="stylesheet" href="3one" precedence="one" /> |
| 1732 | <link rel="stylesheet" href="3two" precedence="two" /> |
| 1733 | <link rel="stylesheet" href="3three" precedence="three" /> |
| 1734 | <link rel="stylesheet" href="3four" precedence="four" /> |
| 1735 | </div> |
| 1736 | </Suspense> |
| 1737 | </div> |
| 1738 | </Suspense> |
| 1739 | <Suspense fallback={null}> |
| 1740 | <div>middle</div> |
| 1741 | <link rel="stylesheet" href="4one" precedence="one" /> |
| 1742 | <link rel="stylesheet" href="4two" precedence="two" /> |
| 1743 | <link rel="stylesheet" href="4three" precedence="three" /> |
| 1744 | <link rel="stylesheet" href="4four" precedence="four" /> |
| 1745 | </Suspense> |
| 1746 | </div> |
| 1747 | </body> |
| 1748 | </html>, |
| 1749 | ); |
| 1750 | pipe(writable); |
| 1751 | }); |
| 1752 | |
| 1753 | expect(getMeaningfulChildren(document)).toEqual( |
| 1754 | <html> |
| 1755 | <head> |
| 1756 | <link rel="stylesheet" href="1one" data-precedence="one" /> |
| 1757 | <link rel="stylesheet" href="2one" data-precedence="one" /> |
| 1758 | <link rel="stylesheet" href="3one" data-precedence="one" /> |
| 1759 | <link rel="stylesheet" href="4one" data-precedence="one" /> |
| 1760 | |
| 1761 | <link rel="stylesheet" href="1two" data-precedence="two" /> |
| 1762 | <link rel="stylesheet" href="2two" data-precedence="two" /> |
| 1763 | <link rel="stylesheet" href="3two" data-precedence="two" /> |
| 1764 | <link rel="stylesheet" href="4two" data-precedence="two" /> |
| 1765 | |
| 1766 | <link rel="stylesheet" href="1three" data-precedence="three" /> |
| 1767 | <link rel="stylesheet" href="2three" data-precedence="three" /> |
| 1768 | <link rel="stylesheet" href="3three" data-precedence="three" /> |
| 1769 | <link rel="stylesheet" href="4three" data-precedence="three" /> |
| 1770 | |
| 1771 | <link rel="stylesheet" href="1four" data-precedence="four" /> |
| 1772 | <link rel="stylesheet" href="2four" data-precedence="four" /> |
| 1773 | <link rel="stylesheet" href="3four" data-precedence="four" /> |
| 1774 | <link rel="stylesheet" href="4four" data-precedence="four" /> |
| 1775 | |
| 1776 | <link rel="stylesheet" href="3five" data-precedence="five" /> |
| 1777 | </head> |
| 1778 | <body> |
| 1779 | <div> |
| 1780 | outer |
| 1781 | <div> |
| 1782 | middle<div>inner</div> |
| 1783 | </div> |
| 1784 | <div>middle</div> |
| 1785 | </div> |
| 1786 | </body> |
| 1787 | </html>, |
| 1788 | ); |
| 1789 | }); |
| 1790 | |
| 1791 | it('stylesheet resources are inserted according to precedence order on the client', async () => { |
| 1792 | await act(() => { |
| 1793 | const {pipe} = renderToPipeableStream( |
| 1794 | <html> |
| 1795 | <head /> |
| 1796 | <body> |
| 1797 | <div> |
| 1798 | <link rel="stylesheet" href="foo" precedence="one" /> |
| 1799 | <link rel="stylesheet" href="bar" precedence="two" /> |
| 1800 | Hello |
| 1801 | </div> |
| 1802 | </body> |
| 1803 | </html>, |
| 1804 | ); |
| 1805 | pipe(writable); |
| 1806 | }); |
| 1807 | |
| 1808 | expect(getMeaningfulChildren(document)).toEqual( |
| 1809 | <html> |
| 1810 | <head> |
| 1811 | <link rel="stylesheet" href="foo" data-precedence="one" /> |
| 1812 | <link rel="stylesheet" href="bar" data-precedence="two" /> |
| 1813 | </head> |
| 1814 | <body> |
| 1815 | <div>Hello</div> |
| 1816 | </body> |
| 1817 | </html>, |
| 1818 | ); |
| 1819 | |
| 1820 | const root = ReactDOMClient.hydrateRoot( |
| 1821 | document, |
| 1822 | <html> |
| 1823 | <head /> |
| 1824 | <body> |
| 1825 | <div> |
| 1826 | <link rel="stylesheet" href="foo" precedence="one" /> |
| 1827 | <link rel="stylesheet" href="bar" precedence="two" /> |
| 1828 | Hello |
| 1829 | </div> |
| 1830 | </body> |
| 1831 | </html>, |
| 1832 | ); |
| 1833 | await waitForAll([]); |
| 1834 | expect(getMeaningfulChildren(document)).toEqual( |
| 1835 | <html> |
| 1836 | <head> |
| 1837 | <link rel="stylesheet" href="foo" data-precedence="one" /> |
| 1838 | <link rel="stylesheet" href="bar" data-precedence="two" /> |
| 1839 | </head> |
| 1840 | <body> |
| 1841 | <div>Hello</div> |
| 1842 | </body> |
| 1843 | </html>, |
| 1844 | ); |
| 1845 | |
| 1846 | root.render( |
| 1847 | <html> |
| 1848 | <head /> |
| 1849 | <body> |
| 1850 | <div>Goodbye</div> |
| 1851 | <link rel="stylesheet" href="baz" precedence="one" /> |
| 1852 | </body> |
| 1853 | </html>, |
| 1854 | ); |
| 1855 | await waitForAll([]); |
| 1856 | await act(() => { |
| 1857 | loadPreloads(); |
| 1858 | loadStylesheets(); |
| 1859 | }); |
| 1860 | await assertLog([ |
| 1861 | 'load preload: baz', |
| 1862 | 'load stylesheet: foo', |
| 1863 | 'load stylesheet: baz', |
| 1864 | 'load stylesheet: bar', |
| 1865 | ]); |
| 1866 | expect(getMeaningfulChildren(document)).toEqual( |
| 1867 | <html> |
| 1868 | <head> |
| 1869 | <link rel="stylesheet" href="foo" data-precedence="one" /> |
| 1870 | <link rel="stylesheet" href="baz" data-precedence="one" /> |
| 1871 | <link rel="stylesheet" href="bar" data-precedence="two" /> |
| 1872 | <link rel="preload" as="style" href="baz" /> |
| 1873 | </head> |
| 1874 | <body> |
| 1875 | <div>Goodbye</div> |
| 1876 | </body> |
| 1877 | </html>, |
| 1878 | ); |
| 1879 | }); |
| 1880 | |
| 1881 | it('inserts preloads in render phase eagerly', async () => { |
| 1882 | function Throw() { |
| 1883 | throw new Error('Uh oh!'); |
| 1884 | } |
| 1885 | class ErrorBoundary extends React.Component { |
| 1886 | state = {hasError: false, error: null}; |
| 1887 | static getDerivedStateFromError(error) { |
| 1888 | return { |
| 1889 | hasError: true, |
| 1890 | error, |
| 1891 | }; |
| 1892 | } |
| 1893 | render() { |
| 1894 | if (this.state.hasError) { |
| 1895 | return this.state.error.message; |
| 1896 | } |
| 1897 | return this.props.children; |
| 1898 | } |
| 1899 | } |
| 1900 | |
| 1901 | const root = ReactDOMClient.createRoot(container); |
| 1902 | root.render( |
| 1903 | <ErrorBoundary> |
| 1904 | <link rel="stylesheet" href="foo" precedence="default" /> |
| 1905 | <div>foo</div> |
| 1906 | <Throw /> |
| 1907 | </ErrorBoundary>, |
| 1908 | ); |
| 1909 | await waitForAll([]); |
| 1910 | expect(getMeaningfulChildren(document)).toEqual( |
| 1911 | <html> |
| 1912 | <head> |
| 1913 | <link rel="preload" href="foo" as="style" /> |
| 1914 | </head> |
| 1915 | <body> |
| 1916 | <div id="container">Uh oh!</div> |
| 1917 | </body> |
| 1918 | </html>, |
| 1919 | ); |
| 1920 | }); |
| 1921 | |
| 1922 | it('will include child boundary stylesheet resources in the boundary reveal instruction', async () => { |
| 1923 | await act(() => { |
| 1924 | const {pipe} = renderToPipeableStream( |
| 1925 | <html> |
| 1926 | <head /> |
| 1927 | <body> |
| 1928 | <div> |
| 1929 | <Suspense fallback="loading foo..."> |
| 1930 | <BlockedOn value="foo"> |
| 1931 | <div>foo</div> |
| 1932 | <link rel="stylesheet" href="foo" precedence="default" /> |
| 1933 | <Suspense fallback="loading bar..."> |
| 1934 | <BlockedOn value="bar"> |
| 1935 | <div>bar</div> |
| 1936 | <link rel="stylesheet" href="bar" precedence="default" /> |
| 1937 | <Suspense fallback="loading baz..."> |
| 1938 | <BlockedOn value="baz"> |
| 1939 | <div>baz</div> |
| 1940 | <link |
| 1941 | rel="stylesheet" |
| 1942 | href="baz" |
| 1943 | precedence="default" |
| 1944 | /> |
| 1945 | </BlockedOn> |
| 1946 | </Suspense> |
| 1947 | </BlockedOn> |
| 1948 | </Suspense> |
| 1949 | </BlockedOn> |
| 1950 | </Suspense> |
| 1951 | </div> |
| 1952 | </body> |
| 1953 | </html>, |
| 1954 | ); |
| 1955 | pipe(writable); |
| 1956 | }); |
| 1957 | |
| 1958 | expect(getMeaningfulChildren(document)).toEqual( |
| 1959 | <html> |
| 1960 | <head /> |
| 1961 | <body> |
| 1962 | <div>loading foo...</div> |
| 1963 | </body> |
| 1964 | </html>, |
| 1965 | ); |
| 1966 | |
| 1967 | await act(() => { |
| 1968 | resolveText('bar'); |
| 1969 | }); |
| 1970 | expect(getMeaningfulChildren(document)).toEqual( |
| 1971 | <html> |
| 1972 | <head /> |
| 1973 | <body> |
| 1974 | <div>loading foo...</div> |
| 1975 | </body> |
| 1976 | </html>, |
| 1977 | ); |
| 1978 | |
| 1979 | await act(() => { |
| 1980 | resolveText('baz'); |
| 1981 | }); |
| 1982 | expect(getMeaningfulChildren(document)).toEqual( |
| 1983 | <html> |
| 1984 | <head /> |
| 1985 | <body> |
| 1986 | <div>loading foo...</div> |
| 1987 | </body> |
| 1988 | </html>, |
| 1989 | ); |
| 1990 | |
| 1991 | await act(() => { |
| 1992 | resolveText('foo'); |
| 1993 | }); |
| 1994 | expect(getMeaningfulChildren(document)).toEqual( |
| 1995 | <html> |
| 1996 | <head> |
| 1997 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 1998 | <link rel="stylesheet" href="bar" data-precedence="default" /> |
| 1999 | <link rel="stylesheet" href="baz" data-precedence="default" /> |
| 2000 | </head> |
| 2001 | <body> |
| 2002 | <div>loading foo...</div> |
| 2003 | <link rel="preload" href="foo" as="style" /> |
| 2004 | <link rel="preload" href="bar" as="style" /> |
| 2005 | <link rel="preload" href="baz" as="style" /> |
| 2006 | </body> |
| 2007 | </html>, |
| 2008 | ); |
| 2009 | |
| 2010 | await act(() => { |
| 2011 | const event = document.createEvent('Events'); |
| 2012 | event.initEvent('load', true, true); |
| 2013 | Array.from(document.querySelectorAll('link[rel="stylesheet"]')).forEach( |
| 2014 | el => { |
| 2015 | el.dispatchEvent(event); |
| 2016 | }, |
| 2017 | ); |
| 2018 | }); |
| 2019 | expect(getMeaningfulChildren(document)).toEqual( |
| 2020 | <html> |
| 2021 | <head> |
| 2022 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 2023 | <link rel="stylesheet" href="bar" data-precedence="default" /> |
| 2024 | <link rel="stylesheet" href="baz" data-precedence="default" /> |
| 2025 | </head> |
| 2026 | <body> |
| 2027 | <div> |
| 2028 | <div>foo</div> |
| 2029 | <div>bar</div> |
| 2030 | <div>baz</div> |
| 2031 | </div> |
| 2032 | <link rel="preload" href="foo" as="style" /> |
| 2033 | <link rel="preload" href="bar" as="style" /> |
| 2034 | <link rel="preload" href="baz" as="style" /> |
| 2035 | </body> |
| 2036 | </html>, |
| 2037 | ); |
| 2038 | }); |
| 2039 | |
| 2040 | it('will hoist resources of child boundaries emitted as part of a partial boundary to the parent boundary', async () => { |
| 2041 | await act(() => { |
| 2042 | const {pipe} = renderToPipeableStream( |
| 2043 | <html> |
| 2044 | <head /> |
| 2045 | <body> |
| 2046 | <div> |
| 2047 | <Suspense fallback="loading..."> |
| 2048 | <div> |
| 2049 | <BlockedOn value="foo"> |
| 2050 | <div>foo</div> |
| 2051 | <link rel="stylesheet" href="foo" precedence="default" /> |
| 2052 | <Suspense fallback="loading bar..."> |
| 2053 | <BlockedOn value="bar"> |
| 2054 | <div>bar</div> |
| 2055 | <link |
| 2056 | rel="stylesheet" |
| 2057 | href="bar" |
| 2058 | precedence="default" |
| 2059 | /> |
| 2060 | <Suspense fallback="loading baz..."> |
| 2061 | <div> |
| 2062 | <BlockedOn value="baz"> |
| 2063 | <div>baz</div> |
| 2064 | <link |
| 2065 | rel="stylesheet" |
| 2066 | href="baz" |
| 2067 | precedence="default" |
| 2068 | /> |
| 2069 | </BlockedOn> |
| 2070 | </div> |
| 2071 | </Suspense> |
| 2072 | </BlockedOn> |
| 2073 | </Suspense> |
| 2074 | </BlockedOn> |
| 2075 | <BlockedOn value="qux"> |
| 2076 | <div>qux</div> |
| 2077 | <link rel="stylesheet" href="qux" precedence="default" /> |
| 2078 | </BlockedOn> |
| 2079 | </div> |
| 2080 | </Suspense> |
| 2081 | </div> |
| 2082 | </body> |
| 2083 | </html>, |
| 2084 | ); |
| 2085 | pipe(writable); |
| 2086 | }); |
| 2087 | |
| 2088 | expect(getMeaningfulChildren(document)).toEqual( |
| 2089 | <html> |
| 2090 | <head /> |
| 2091 | <body> |
| 2092 | <div>loading...</div> |
| 2093 | </body> |
| 2094 | </html>, |
| 2095 | ); |
| 2096 | |
| 2097 | // This will enqueue a stylesheet resource in a deep blocked boundary (loading baz...). |
| 2098 | await act(() => { |
| 2099 | resolveText('baz'); |
| 2100 | }); |
| 2101 | expect(getMeaningfulChildren(document)).toEqual( |
| 2102 | <html> |
| 2103 | <head /> |
| 2104 | <body> |
| 2105 | <div>loading...</div> |
| 2106 | </body> |
| 2107 | </html>, |
| 2108 | ); |
| 2109 | |
| 2110 | // This will enqueue a stylesheet resource in the intermediate blocked boundary (loading bar...). |
| 2111 | await act(() => { |
| 2112 | resolveText('bar'); |
| 2113 | }); |
| 2114 | expect(getMeaningfulChildren(document)).toEqual( |
| 2115 | <html> |
| 2116 | <head /> |
| 2117 | <body> |
| 2118 | <div>loading...</div> |
| 2119 | </body> |
| 2120 | </html>, |
| 2121 | ); |
| 2122 | |
| 2123 | // This will complete a segment in the top level boundary that is still blocked on another segment. |
| 2124 | // It will flush the completed segment however the inner boundaries should not emit their style dependencies |
| 2125 | // because they are not going to be revealed yet. instead their dependencies are hoisted to the blocked |
| 2126 | // boundary (top level). |
| 2127 | await act(() => { |
| 2128 | resolveText('foo'); |
| 2129 | }); |
| 2130 | expect(getMeaningfulChildren(document)).toEqual( |
| 2131 | <html> |
| 2132 | <head /> |
| 2133 | <body> |
| 2134 | <div>loading...</div> |
| 2135 | <link rel="preload" href="foo" as="style" /> |
| 2136 | <link rel="preload" href="bar" as="style" /> |
| 2137 | <link rel="preload" href="baz" as="style" /> |
| 2138 | </body> |
| 2139 | </html>, |
| 2140 | ); |
| 2141 | |
| 2142 | // This resolves the last blocked segment on the top level boundary so we see all dependencies of the |
| 2143 | // nested boundaries emitted at this level |
| 2144 | await act(() => { |
| 2145 | resolveText('qux'); |
| 2146 | }); |
| 2147 | expect(getMeaningfulChildren(document)).toEqual( |
| 2148 | <html> |
| 2149 | <head> |
| 2150 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 2151 | <link rel="stylesheet" href="bar" data-precedence="default" /> |
| 2152 | <link rel="stylesheet" href="baz" data-precedence="default" /> |
| 2153 | <link rel="stylesheet" href="qux" data-precedence="default" /> |
| 2154 | </head> |
| 2155 | <body> |
| 2156 | <div>loading...</div> |
| 2157 | <link rel="preload" href="foo" as="style" /> |
| 2158 | <link rel="preload" href="bar" as="style" /> |
| 2159 | <link rel="preload" href="baz" as="style" /> |
| 2160 | <link rel="preload" href="qux" as="style" /> |
| 2161 | </body> |
| 2162 | </html>, |
| 2163 | ); |
| 2164 | |
| 2165 | // We load all stylesheets and confirm the content is revealed |
| 2166 | await act(() => { |
| 2167 | const event = document.createEvent('Events'); |
| 2168 | event.initEvent('load', true, true); |
| 2169 | Array.from(document.querySelectorAll('link[rel="stylesheet"]')).forEach( |
| 2170 | el => { |
| 2171 | el.dispatchEvent(event); |
| 2172 | }, |
| 2173 | ); |
| 2174 | }); |
| 2175 | expect(getMeaningfulChildren(document)).toEqual( |
| 2176 | <html> |
| 2177 | <head> |
| 2178 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 2179 | <link rel="stylesheet" href="bar" data-precedence="default" /> |
| 2180 | <link rel="stylesheet" href="baz" data-precedence="default" /> |
| 2181 | <link rel="stylesheet" href="qux" data-precedence="default" /> |
| 2182 | </head> |
| 2183 | <body> |
| 2184 | <div> |
| 2185 | <div> |
| 2186 | <div>foo</div> |
| 2187 | <div>bar</div> |
| 2188 | <div> |
| 2189 | <div>baz</div> |
| 2190 | </div> |
| 2191 | <div>qux</div> |
| 2192 | </div> |
| 2193 | </div> |
| 2194 | <link rel="preload" href="foo" as="style" /> |
| 2195 | <link rel="preload" href="bar" as="style" /> |
| 2196 | <link rel="preload" href="baz" as="style" /> |
| 2197 | <link rel="preload" href="qux" as="style" /> |
| 2198 | </body> |
| 2199 | </html>, |
| 2200 | ); |
| 2201 | }); |
| 2202 | |
| 2203 | it('encodes attributes consistently whether resources are flushed in shell or in late boundaries', async () => { |
| 2204 | function App() { |
| 2205 | return ( |
| 2206 | <html> |
| 2207 | <head /> |
| 2208 | <body> |
| 2209 | <div> |
| 2210 | <link |
| 2211 | // This preload is explicit so it can flush with a lot of potential attrs |
| 2212 | // We will duplicate this as a style that flushes after the shell |
| 2213 | rel="stylesheet" |
| 2214 | href="foo" |
| 2215 | // precedence is not a special attribute for preloads so this will just flush as is |
| 2216 | precedence="default" |
| 2217 | // Some standard link props |
| 2218 | crossOrigin="anonymous" |
| 2219 | media="all" |
| 2220 | integrity="somehash" |
| 2221 | referrerPolicy="origin" |
| 2222 | // data and non starndard attributes that should flush |
| 2223 | data-foo={'"quoted"'} |
| 2224 | nonStandardAttr="attr" |
| 2225 | properlyformattednonstandardattr="attr" |
| 2226 | // attributes that should be filtered out for violating certain rules |
| 2227 | onSomething="this should be removed b/c event handler" |
| 2228 | shouldnotincludefunctions={() => {}} |
| 2229 | norsymbols={Symbol('foo')} |
| 2230 | /> |
| 2231 | <Suspense fallback={'loading...'}> |
| 2232 | <BlockedOn value="unblock"> |
| 2233 | <link |
| 2234 | // This preload is explicit so it can flush with a lot of potential attrs |
| 2235 | // We will duplicate this as a style that flushes after the shell |
| 2236 | rel="stylesheet" |
| 2237 | href="bar" |
| 2238 | // opt-in property to get this treated as a resource |
| 2239 | precedence="default" |
| 2240 | // Some standard link props |
| 2241 | crossOrigin="anonymous" |
| 2242 | media="all" |
| 2243 | integrity="somehash" |
| 2244 | referrerPolicy="origin" |
| 2245 | // data and non starndard attributes that should flush |
| 2246 | data-foo={'"quoted"'} |
| 2247 | nonStandardAttr="attr" |
| 2248 | properlyformattednonstandardattr="attr" |
| 2249 | // attributes that should be filtered out for violating certain rules |
| 2250 | onSomething="this should be removed b/c event handler" |
| 2251 | shouldnotincludefunctions={() => {}} |
| 2252 | norsymbols={Symbol('foo')} |
| 2253 | /> |
| 2254 | </BlockedOn> |
| 2255 | </Suspense> |
| 2256 | </div> |
| 2257 | </body> |
| 2258 | </html> |
| 2259 | ); |
| 2260 | } |
| 2261 | await act(() => { |
| 2262 | const {pipe} = renderToPipeableStream(<App />); |
| 2263 | pipe(writable); |
| 2264 | }); |
| 2265 | expect(getMeaningfulChildren(document)).toEqual( |
| 2266 | <html> |
| 2267 | <head> |
| 2268 | <link |
| 2269 | rel="stylesheet" |
| 2270 | href="foo" |
| 2271 | data-precedence="default" |
| 2272 | crossorigin="anonymous" |
| 2273 | media="all" |
| 2274 | integrity="somehash" |
| 2275 | referrerpolicy="origin" |
| 2276 | data-foo={'"quoted"'} |
| 2277 | nonstandardattr="attr" |
| 2278 | properlyformattednonstandardattr="attr" |
| 2279 | /> |
| 2280 | </head> |
| 2281 | <body> |
| 2282 | <div>loading...</div> |
| 2283 | </body> |
| 2284 | </html>, |
| 2285 | ); |
| 2286 | assertConsoleErrorDev([ |
| 2287 | 'React does not recognize the `nonStandardAttr` prop on a DOM element. ' + |
| 2288 | 'If you intentionally want it to appear in the DOM as a custom attribute, ' + |
| 2289 | 'spell it as lowercase `nonstandardattr` instead. If you accidentally passed it from a ' + |
| 2290 | 'parent component, remove it from the DOM element.\n' + |
| 2291 | ' in link (at **)\n' + |
| 2292 | ' in App (at **)', |
| 2293 | 'Invalid values for props `shouldnotincludefunctions`, `norsymbols` on <link> tag. ' + |
| 2294 | 'Either remove them from the element, or pass a string or number value to keep them in the DOM. ' + |
| 2295 | 'For details, see https://react.dev/link/attribute-behavior \n' + |
| 2296 | ' in link (at **)\n' + |
| 2297 | ' in App (at **)', |
| 2298 | ]); |
| 2299 | |
| 2300 | // Now we flush the stylesheet with the boundary |
| 2301 | await act(() => { |
| 2302 | resolveText('unblock'); |
| 2303 | }); |
| 2304 | |
| 2305 | expect(getMeaningfulChildren(document)).toEqual( |
| 2306 | <html> |
| 2307 | <head> |
| 2308 | <link |
| 2309 | rel="stylesheet" |
| 2310 | href="foo" |
| 2311 | data-precedence="default" |
| 2312 | crossorigin="anonymous" |
| 2313 | media="all" |
| 2314 | integrity="somehash" |
| 2315 | referrerpolicy="origin" |
| 2316 | data-foo={'"quoted"'} |
| 2317 | nonstandardattr="attr" |
| 2318 | properlyformattednonstandardattr="attr" |
| 2319 | /> |
| 2320 | <link |
| 2321 | rel="stylesheet" |
| 2322 | href="bar" |
| 2323 | data-precedence="default" |
| 2324 | crossorigin="anonymous" |
| 2325 | media="all" |
| 2326 | integrity="somehash" |
| 2327 | referrerpolicy="origin" |
| 2328 | data-foo={'"quoted"'} |
| 2329 | nonstandardattr="attr" |
| 2330 | properlyformattednonstandardattr="attr" |
| 2331 | /> |
| 2332 | </head> |
| 2333 | <body> |
| 2334 | <div>loading...</div> |
| 2335 | <link |
| 2336 | rel="preload" |
| 2337 | as="style" |
| 2338 | href="bar" |
| 2339 | crossorigin="anonymous" |
| 2340 | media="all" |
| 2341 | integrity="somehash" |
| 2342 | referrerpolicy="origin" |
| 2343 | /> |
| 2344 | </body> |
| 2345 | </html>, |
| 2346 | ); |
| 2347 | }); |
| 2348 | |
| 2349 | it('boundary stylesheet resource dependencies hoist to a parent boundary when flushed inline', async () => { |
| 2350 | await act(() => { |
| 2351 | const {pipe} = renderToPipeableStream( |
| 2352 | <html> |
| 2353 | <head /> |
| 2354 | <body> |
| 2355 | <div> |
| 2356 | <Suspense fallback="loading A..."> |
| 2357 | <BlockedOn value="unblock"> |
| 2358 | <AsyncText text="A" /> |
| 2359 | <link rel="stylesheet" href="A" precedence="A" /> |
| 2360 | <Suspense fallback="loading AA..."> |
| 2361 | <AsyncText text="AA" /> |
| 2362 | <link rel="stylesheet" href="AA" precedence="AA" /> |
| 2363 | <Suspense fallback="loading AAA..."> |
| 2364 | <AsyncText text="AAA" /> |
| 2365 | <link rel="stylesheet" href="AAA" precedence="AAA" /> |
| 2366 | <Suspense fallback="loading AAAA..."> |
| 2367 | <AsyncText text="AAAA" /> |
| 2368 | <link rel="stylesheet" href="AAAA" precedence="AAAA" /> |
| 2369 | </Suspense> |
| 2370 | </Suspense> |
| 2371 | </Suspense> |
| 2372 | </BlockedOn> |
| 2373 | </Suspense> |
| 2374 | </div> |
| 2375 | </body> |
| 2376 | </html>, |
| 2377 | ); |
| 2378 | pipe(writable); |
| 2379 | }); |
| 2380 | expect(getMeaningfulChildren(document)).toEqual( |
| 2381 | <html> |
| 2382 | <head /> |
| 2383 | <body> |
| 2384 | <div>loading A...</div> |
| 2385 | </body> |
| 2386 | </html>, |
| 2387 | ); |
| 2388 | |
| 2389 | await act(() => { |
| 2390 | resolveText('unblock'); |
| 2391 | resolveText('AAAA'); |
| 2392 | resolveText('AA'); |
| 2393 | }); |
| 2394 | expect(getMeaningfulChildren(document)).toEqual( |
| 2395 | <html> |
| 2396 | <head /> |
| 2397 | <body> |
| 2398 | <div>loading A...</div> |
| 2399 | <link rel="preload" as="style" href="A" /> |
| 2400 | <link rel="preload" as="style" href="AA" /> |
| 2401 | <link rel="preload" as="style" href="AAA" /> |
| 2402 | <link rel="preload" as="style" href="AAAA" /> |
| 2403 | </body> |
| 2404 | </html>, |
| 2405 | ); |
| 2406 | |
| 2407 | await act(() => { |
| 2408 | resolveText('A'); |
| 2409 | }); |
| 2410 | await act(() => { |
| 2411 | document.querySelectorAll('link[rel="stylesheet"]').forEach(l => { |
| 2412 | const event = document.createEvent('Events'); |
| 2413 | event.initEvent('load', true, true); |
| 2414 | l.dispatchEvent(event); |
| 2415 | }); |
| 2416 | }); |
| 2417 | expect(getMeaningfulChildren(document)).toEqual( |
| 2418 | <html> |
| 2419 | <head> |
| 2420 | <link rel="stylesheet" href="A" data-precedence="A" /> |
| 2421 | <link rel="stylesheet" href="AA" data-precedence="AA" /> |
| 2422 | </head> |
| 2423 | <body> |
| 2424 | <div> |
| 2425 | {'A'} |
| 2426 | {'AA'} |
| 2427 | {'loading AAA...'} |
| 2428 | </div> |
| 2429 | <link rel="preload" as="style" href="A" /> |
| 2430 | <link rel="preload" as="style" href="AA" /> |
| 2431 | <link rel="preload" as="style" href="AAA" /> |
| 2432 | <link rel="preload" as="style" href="AAAA" /> |
| 2433 | </body> |
| 2434 | </html>, |
| 2435 | ); |
| 2436 | |
| 2437 | await act(() => { |
| 2438 | resolveText('AAA'); |
| 2439 | }); |
| 2440 | await act(() => { |
| 2441 | document.querySelectorAll('link[rel="stylesheet"]').forEach(l => { |
| 2442 | const event = document.createEvent('Events'); |
| 2443 | event.initEvent('load', true, true); |
| 2444 | l.dispatchEvent(event); |
| 2445 | }); |
| 2446 | }); |
| 2447 | expect(getMeaningfulChildren(document)).toEqual( |
| 2448 | <html> |
| 2449 | <head> |
| 2450 | <link rel="stylesheet" href="A" data-precedence="A" /> |
| 2451 | <link rel="stylesheet" href="AA" data-precedence="AA" /> |
| 2452 | <link rel="stylesheet" href="AAA" data-precedence="AAA" /> |
| 2453 | <link rel="stylesheet" href="AAAA" data-precedence="AAAA" /> |
| 2454 | </head> |
| 2455 | <body> |
| 2456 | <div> |
| 2457 | {'A'} |
| 2458 | {'AA'} |
| 2459 | {'AAA'} |
| 2460 | {'AAAA'} |
| 2461 | </div> |
| 2462 | <link rel="preload" as="style" href="A" /> |
| 2463 | <link rel="preload" as="style" href="AA" /> |
| 2464 | <link rel="preload" as="style" href="AAA" /> |
| 2465 | <link rel="preload" as="style" href="AAAA" /> |
| 2466 | </body> |
| 2467 | </html>, |
| 2468 | ); |
| 2469 | }); |
| 2470 | |
| 2471 | it('always enforces crossOrigin "anonymous" for font preloads', async () => { |
| 2472 | function App() { |
| 2473 | ReactDOM.preload('foo', {as: 'font', type: 'font/woff2'}); |
| 2474 | ReactDOM.preload('bar', {as: 'font', crossOrigin: 'foo'}); |
| 2475 | ReactDOM.preload('baz', {as: 'font', crossOrigin: 'use-credentials'}); |
| 2476 | ReactDOM.preload('qux', {as: 'font', crossOrigin: 'anonymous'}); |
| 2477 | return ( |
| 2478 | <html> |
| 2479 | <head /> |
| 2480 | <body /> |
| 2481 | </html> |
| 2482 | ); |
| 2483 | } |
| 2484 | await act(() => { |
| 2485 | const {pipe} = renderToPipeableStream(<App />); |
| 2486 | pipe(writable); |
| 2487 | }); |
| 2488 | expect(getMeaningfulChildren(document)).toEqual( |
| 2489 | <html> |
| 2490 | <head> |
| 2491 | <link |
| 2492 | rel="preload" |
| 2493 | as="font" |
| 2494 | href="foo" |
| 2495 | crossorigin="" |
| 2496 | type="font/woff2" |
| 2497 | /> |
| 2498 | <link rel="preload" as="font" href="bar" crossorigin="" /> |
| 2499 | <link rel="preload" as="font" href="baz" crossorigin="" /> |
| 2500 | <link rel="preload" as="font" href="qux" crossorigin="" /> |
| 2501 | </head> |
| 2502 | <body /> |
| 2503 | </html>, |
| 2504 | ); |
| 2505 | }); |
| 2506 | |
| 2507 | it('does not hoist anything with an itemprop prop', async () => { |
| 2508 | function App() { |
| 2509 | return ( |
| 2510 | <html> |
| 2511 | <head> |
| 2512 | <meta itemProp="outside" content="unscoped" /> |
| 2513 | <link itemProp="link" rel="foo" href="foo" /> |
| 2514 | <title itemProp="outside-title">title</title> |
| 2515 | <link |
| 2516 | itemProp="outside-stylesheet" |
| 2517 | rel="stylesheet" |
| 2518 | href="bar" |
| 2519 | precedence="default" |
| 2520 | /> |
| 2521 | <style itemProp="outside-style" href="baz" precedence="default"> |
| 2522 | outside style |
| 2523 | </style> |
| 2524 | <script itemProp="outside-script" async={true} src="qux" /> |
| 2525 | </head> |
| 2526 | <body> |
| 2527 | <div itemScope={true}> |
| 2528 | <div> |
| 2529 | <meta itemProp="inside-meta" content="scoped" /> |
| 2530 | <link itemProp="inside-link" rel="foo" href="foo" /> |
| 2531 | <title itemProp="inside-title">title</title> |
| 2532 | <link |
| 2533 | itemProp="inside-stylesheet" |
| 2534 | rel="stylesheet" |
| 2535 | href="bar" |
| 2536 | precedence="default" |
| 2537 | /> |
| 2538 | <style itemProp="inside-style" href="baz" precedence="default"> |
| 2539 | inside style |
| 2540 | </style> |
| 2541 | <script itemProp="inside-script" async={true} src="qux" /> |
| 2542 | </div> |
| 2543 | </div> |
| 2544 | </body> |
| 2545 | </html> |
| 2546 | ); |
| 2547 | } |
| 2548 | await act(() => { |
| 2549 | renderToPipeableStream(<App />).pipe(writable); |
| 2550 | }); |
| 2551 | |
| 2552 | expect(getMeaningfulChildren(document)).toEqual( |
| 2553 | <html> |
| 2554 | <head> |
| 2555 | <meta itemprop="outside" content="unscoped" /> |
| 2556 | <link itemprop="link" rel="foo" href="foo" /> |
| 2557 | <title itemprop="outside-title">title</title> |
| 2558 | <link |
| 2559 | itemprop="outside-stylesheet" |
| 2560 | rel="stylesheet" |
| 2561 | href="bar" |
| 2562 | precedence="default" |
| 2563 | /> |
| 2564 | <style itemprop="outside-style" href="baz" precedence="default"> |
| 2565 | outside style |
| 2566 | </style> |
| 2567 | <script itemprop="outside-script" async="" src="qux" /> |
| 2568 | </head> |
| 2569 | <body> |
| 2570 | <div itemscope=""> |
| 2571 | <div> |
| 2572 | <meta itemprop="inside-meta" content="scoped" /> |
| 2573 | <link itemprop="inside-link" rel="foo" href="foo" /> |
| 2574 | <title itemprop="inside-title">title</title> |
| 2575 | <link |
| 2576 | itemprop="inside-stylesheet" |
| 2577 | rel="stylesheet" |
| 2578 | href="bar" |
| 2579 | precedence="default" |
| 2580 | /> |
| 2581 | <style itemprop="inside-style" href="baz" precedence="default"> |
| 2582 | inside style |
| 2583 | </style> |
| 2584 | <script itemprop="inside-script" async="" src="qux" /> |
| 2585 | </div> |
| 2586 | </div> |
| 2587 | </body> |
| 2588 | </html>, |
| 2589 | ); |
| 2590 | |
| 2591 | ReactDOMClient.hydrateRoot(document, <App />); |
| 2592 | await waitForAll([]); |
| 2593 | |
| 2594 | expect(getMeaningfulChildren(document)).toEqual( |
| 2595 | <html> |
| 2596 | <head> |
| 2597 | <meta itemprop="outside" content="unscoped" /> |
| 2598 | <link itemprop="link" rel="foo" href="foo" /> |
| 2599 | <title itemprop="outside-title">title</title> |
| 2600 | <link |
| 2601 | itemprop="outside-stylesheet" |
| 2602 | rel="stylesheet" |
| 2603 | href="bar" |
| 2604 | precedence="default" |
| 2605 | /> |
| 2606 | <style itemprop="outside-style" href="baz" precedence="default"> |
| 2607 | outside style |
| 2608 | </style> |
| 2609 | <script itemprop="outside-script" async="" src="qux" /> |
| 2610 | </head> |
| 2611 | <body> |
| 2612 | <div itemscope=""> |
| 2613 | <div> |
| 2614 | <meta itemprop="inside-meta" content="scoped" /> |
| 2615 | <link itemprop="inside-link" rel="foo" href="foo" /> |
| 2616 | <title itemprop="inside-title">title</title> |
| 2617 | <link |
| 2618 | itemprop="inside-stylesheet" |
| 2619 | rel="stylesheet" |
| 2620 | href="bar" |
| 2621 | precedence="default" |
| 2622 | /> |
| 2623 | <style itemprop="inside-style" href="baz" precedence="default"> |
| 2624 | inside style |
| 2625 | </style> |
| 2626 | <script itemprop="inside-script" async="" src="qux" /> |
| 2627 | </div> |
| 2628 | </div> |
| 2629 | </body> |
| 2630 | </html>, |
| 2631 | ); |
| 2632 | }); |
| 2633 | |
| 2634 | it('warns if you render <meta> tag with itemProp outside <body> or <head>', async () => { |
| 2635 | const root = ReactDOMClient.createRoot(document); |
| 2636 | root.render( |
| 2637 | <html> |
| 2638 | <meta itemProp="foo" /> |
| 2639 | </html>, |
| 2640 | ); |
| 2641 | |
| 2642 | await waitForAll([]); |
| 2643 | assertConsoleErrorDev([ |
| 2644 | 'Cannot render a <meta> outside the main document if it has an `itemProp` prop. ' + |
| 2645 | '`itemProp` suggests the tag belongs to an `itemScope` which can appear anywhere in the DOM. ' + |
| 2646 | 'If you were intending for React to hoist this <meta> remove the `itemProp` prop. ' + |
| 2647 | 'Otherwise, try moving this tag into the <head> or <body> of the Document.\n' + |
| 2648 | ' in html (at **)', |
| 2649 | 'In HTML, <meta> cannot be a child of <html>.\n' + |
| 2650 | 'This will cause a hydration error.\n' + |
| 2651 | '\n' + |
| 2652 | '> <html>\n' + |
| 2653 | '> <meta itemProp="foo">' + |
| 2654 | '\n' + |
| 2655 | '\n in meta (at **)', |
| 2656 | ]); |
| 2657 | }); |
| 2658 | |
| 2659 | it('warns if you render a <title> tag with itemProp outside <body> or <head>', async () => { |
| 2660 | const root = ReactDOMClient.createRoot(document); |
| 2661 | root.render( |
| 2662 | <html> |
| 2663 | <title itemProp="foo">title</title> |
| 2664 | </html>, |
| 2665 | ); |
| 2666 | |
| 2667 | await waitForAll([]); |
| 2668 | assertConsoleErrorDev([ |
| 2669 | 'Cannot render a <title> outside the main document if it has an `itemProp` prop. ' + |
| 2670 | '`itemProp` suggests the tag belongs to an `itemScope` which can appear anywhere in the DOM. ' + |
| 2671 | 'If you were intending for React to hoist this <title> remove the `itemProp` prop. ' + |
| 2672 | 'Otherwise, try moving this tag into the <head> or <body> of the Document.\n' + |
| 2673 | ' in html (at **)', |
| 2674 | 'In HTML, <title> cannot be a child of <html>.\n' + |
| 2675 | 'This will cause a hydration error.\n' + |
| 2676 | '\n' + |
| 2677 | '> <html>\n' + |
| 2678 | '> <title itemProp="foo">' + |
| 2679 | '\n' + |
| 2680 | '\n in title (at **)', |
| 2681 | ]); |
| 2682 | }); |
| 2683 | |
| 2684 | it('warns if you render a <style> tag with itemProp outside <body> or <head>', async () => { |
| 2685 | const root = ReactDOMClient.createRoot(document); |
| 2686 | root.render( |
| 2687 | <html> |
| 2688 | <style itemProp="foo">style</style> |
| 2689 | </html>, |
| 2690 | ); |
| 2691 | |
| 2692 | await waitForAll([]); |
| 2693 | assertConsoleErrorDev([ |
| 2694 | 'Cannot render a <style> outside the main document if it has an `itemProp` prop. ' + |
| 2695 | '`itemProp` suggests the tag belongs to an `itemScope` which can appear anywhere in the DOM. ' + |
| 2696 | 'If you were intending for React to hoist this <style> remove the `itemProp` prop. ' + |
| 2697 | 'Otherwise, try moving this tag into the <head> or <body> of the Document.\n' + |
| 2698 | ' in html (at **)', |
| 2699 | 'In HTML, <style> cannot be a child of <html>.\n' + |
| 2700 | 'This will cause a hydration error.\n' + |
| 2701 | '\n' + |
| 2702 | '> <html>\n' + |
| 2703 | '> <style itemProp="foo">' + |
| 2704 | '\n' + |
| 2705 | '\n in style (at **)', |
| 2706 | ]); |
| 2707 | }); |
| 2708 | |
| 2709 | it('warns if you render a <link> tag with itemProp outside <body> or <head>', async () => { |
| 2710 | const root = ReactDOMClient.createRoot(document); |
| 2711 | root.render( |
| 2712 | <html> |
| 2713 | <link itemProp="foo" /> |
| 2714 | </html>, |
| 2715 | ); |
| 2716 | |
| 2717 | await waitForAll([]); |
| 2718 | assertConsoleErrorDev([ |
| 2719 | 'Cannot render a <link> outside the main document if it has an `itemProp` prop. ' + |
| 2720 | '`itemProp` suggests the tag belongs to an `itemScope` which can appear anywhere in the DOM. ' + |
| 2721 | 'If you were intending for React to hoist this <link> remove the `itemProp` prop. ' + |
| 2722 | 'Otherwise, try moving this tag into the <head> or <body> of the Document.\n' + |
| 2723 | ' in html (at **)', |
| 2724 | 'In HTML, <link> cannot be a child of <html>.\n' + |
| 2725 | 'This will cause a hydration error.\n' + |
| 2726 | '\n' + |
| 2727 | '> <html>\n' + |
| 2728 | '> <link itemProp="foo">\n' + |
| 2729 | '\n' + |
| 2730 | ' in link (at **)', |
| 2731 | ]); |
| 2732 | }); |
| 2733 | |
| 2734 | it('warns if you render a <script> tag with itemProp outside <body> or <head>', async () => { |
| 2735 | const root = ReactDOMClient.createRoot(document); |
| 2736 | root.render( |
| 2737 | <html> |
| 2738 | <script itemProp="foo" /> |
| 2739 | </html>, |
| 2740 | ); |
| 2741 | |
| 2742 | await waitForAll([]); |
| 2743 | assertConsoleErrorDev([ |
| 2744 | 'Cannot render a <script> outside the main document if it has an `itemProp` prop. ' + |
| 2745 | '`itemProp` suggests the tag belongs to an `itemScope` which can appear anywhere in the DOM. ' + |
| 2746 | 'If you were intending for React to hoist this <script> remove the `itemProp` prop. ' + |
| 2747 | 'Otherwise, try moving this tag into the <head> or <body> of the Document.\n' + |
| 2748 | ' in html (at **)', |
| 2749 | 'In HTML, <script> cannot be a child of <html>.\n' + |
| 2750 | 'This will cause a hydration error.\n' + |
| 2751 | '\n' + |
| 2752 | '> <html>\n' + |
| 2753 | '> <script itemProp="foo">\n' + |
| 2754 | '\n' + |
| 2755 | ' in script (at **)', |
| 2756 | ...(gate('enableTrustedTypesIntegration') |
| 2757 | ? [ |
| 2758 | 'Encountered a script tag while rendering React component. ' + |
| 2759 | 'Scripts inside React components are never executed when rendering on the client. ' + |
| 2760 | 'Consider using template tag instead (https://developer.mozilla.org/en-US/docs/Web/HTML/Element/template).\n' + |
| 2761 | ' in script (at **)', |
| 2762 | ] |
| 2763 | : []), |
| 2764 | ]); |
| 2765 | }); |
| 2766 | |
| 2767 | it('can hydrate resources and components in the head and body even if a browser or 3rd party script injects extra html nodes', async () => { |
| 2768 | // This is a stress test case for hydrating a complex combination of hoistable elements, hoistable resources and host components |
| 2769 | // in an environment that has been manipulated by 3rd party scripts/extensions to modify the <head> and <body> |
| 2770 | function App() { |
| 2771 | return ( |
| 2772 | <> |
| 2773 | <link rel="foo" href="foo" /> |
| 2774 | <script async={true} src="rendered" /> |
| 2775 | <link rel="stylesheet" href="stylesheet" precedence="default" /> |
| 2776 | <html itemScope={true}> |
| 2777 | <head> |
| 2778 | {/* Component */} |
| 2779 | <link rel="stylesheet" href="stylesheet" /> |
| 2780 | <script src="sync rendered" data-meaningful="" /> |
| 2781 | <style>{'body { background-color: red; }'}</style> |
| 2782 | <script src="async rendered" async={true} onLoad={() => {}} /> |
| 2783 | <noscript> |
| 2784 | <meta name="noscript" content="noscript" /> |
| 2785 | </noscript> |
| 2786 | <link rel="foo" href="foo" onLoad={() => {}} /> |
| 2787 | </head> |
| 2788 | <body> |
| 2789 | {/* Component because it has itemProp */} |
| 2790 | <meta name="foo" content="foo" itemProp="a prop" /> |
| 2791 | {/* regular Hoistable */} |
| 2792 | <meta name="foo" content="foo" /> |
| 2793 | {/* regular Hoistable */} |
| 2794 | <title>title</title> |
| 2795 | <div itemScope={true}> |
| 2796 | <div> |
| 2797 | <div>deep hello</div> |
| 2798 | {/* Component because it has itemProp */} |
| 2799 | <meta name="foo" content="foo" itemProp="a prop" /> |
| 2800 | </div> |
| 2801 | </div> |
| 2802 | </body> |
| 2803 | </html> |
| 2804 | <link rel="foo" href="foo" /> |
| 2805 | </> |
| 2806 | ); |
| 2807 | } |
| 2808 | |
| 2809 | await act(() => { |
| 2810 | renderToPipeableStream(<App />).pipe(writable); |
| 2811 | }); |
| 2812 | |
| 2813 | expect(getMeaningfulChildren(document)).toEqual( |
| 2814 | <html itemscope=""> |
| 2815 | <head> |
| 2816 | {/* Hoisted Resources and elements */} |
| 2817 | <link rel="stylesheet" href="stylesheet" data-precedence="default" /> |
| 2818 | <script async="" src="rendered" /> |
| 2819 | <link rel="foo" href="foo" /> |
| 2820 | <meta name="foo" content="foo" /> |
| 2821 | <title>title</title> |
| 2822 | <link rel="foo" href="foo" /> |
| 2823 | {/* rendered host components */} |
| 2824 | <link rel="stylesheet" href="stylesheet" /> |
| 2825 | <script src="sync rendered" data-meaningful="" /> |
| 2826 | <style>{'body { background-color: red; }'}</style> |
| 2827 | <script src="async rendered" async="" /> |
| 2828 | <noscript><meta name="noscript" content="noscript"></noscript> |
| 2829 | <link rel="foo" href="foo" /> |
| 2830 | </head> |
| 2831 | <body> |
| 2832 | <meta name="foo" content="foo" itemprop="a prop" /> |
| 2833 | <div itemscope=""> |
| 2834 | <div> |
| 2835 | <div>deep hello</div> |
| 2836 | <meta name="foo" content="foo" itemprop="a prop" /> |
| 2837 | </div> |
| 2838 | </div> |
| 2839 | </body> |
| 2840 | </html>, |
| 2841 | ); |
| 2842 | |
| 2843 | // We inject some styles, divs, scripts into the begginning, middle, and end |
| 2844 | // of the head / body. |
| 2845 | const injectedStyle = document.createElement('style'); |
| 2846 | injectedStyle.textContent = 'body { background-color: blue; }'; |
| 2847 | document.head.prepend(injectedStyle.cloneNode(true)); |
| 2848 | document.head.appendChild(injectedStyle.cloneNode(true)); |
| 2849 | document.body.prepend(injectedStyle.cloneNode(true)); |
| 2850 | document.body.appendChild(injectedStyle.cloneNode(true)); |
| 2851 | |
| 2852 | const injectedDiv = document.createElement('div'); |
| 2853 | document.head.prepend(injectedDiv); |
| 2854 | document.head.appendChild(injectedDiv.cloneNode(true)); |
| 2855 | // We do not prepend a <div> in body because this will conflict with hyration |
| 2856 | // We still mostly hydrate by matchign tag and <div> does not have any attributes to |
| 2857 | // differentiate between likely-inject and likely-rendered cases. If a <div> is prepended |
| 2858 | // in the <body> and you render a <div> as the first child of <body> there will be a conflict. |
| 2859 | // We consider this a rare edge case and even if it does happen the fallback to client rendering |
| 2860 | // should patch up the DOM correctly |
| 2861 | document.body.appendChild(injectedDiv.cloneNode(true)); |
| 2862 | |
| 2863 | const injectedScript = document.createElement('script'); |
| 2864 | injectedScript.setAttribute('async', ''); |
| 2865 | injectedScript.setAttribute('src', 'injected'); |
| 2866 | document.head.prepend(injectedScript); |
| 2867 | document.head.appendChild(injectedScript.cloneNode(true)); |
| 2868 | document.body.prepend(injectedScript.cloneNode(true)); |
| 2869 | document.body.appendChild(injectedScript.cloneNode(true)); |
| 2870 | |
| 2871 | // We hydrate the same App and confirm the output is identical except for the async |
| 2872 | // script insertion that happens because we do not SSR async scripts with load handlers. |
| 2873 | // All the extra inject nodes are preset |
| 2874 | const root = ReactDOMClient.hydrateRoot(document, <App />); |
| 2875 | await waitForAll([]); |
| 2876 | expect(getMeaningfulChildren(document)).toEqual( |
| 2877 | <html itemscope=""> |
| 2878 | <head> |
| 2879 | <script async="" src="injected" /> |
| 2880 | <div /> |
| 2881 | <style>{'body { background-color: blue; }'}</style> |
| 2882 | <link rel="stylesheet" href="stylesheet" data-precedence="default" /> |
| 2883 | <script async="" src="rendered" /> |
| 2884 | <link rel="foo" href="foo" /> |
| 2885 | <meta name="foo" content="foo" /> |
| 2886 | <title>title</title> |
| 2887 | <link rel="foo" href="foo" /> |
| 2888 | <link rel="stylesheet" href="stylesheet" /> |
| 2889 | <script src="sync rendered" data-meaningful="" /> |
| 2890 | <style>{'body { background-color: red; }'}</style> |
| 2891 | <script src="async rendered" async="" /> |
| 2892 | <noscript><meta name="noscript" content="noscript"></noscript> |
| 2893 | <link rel="foo" href="foo" /> |
| 2894 | <style>{'body { background-color: blue; }'}</style> |
| 2895 | <div /> |
| 2896 | <script async="" src="injected" /> |
| 2897 | </head> |
| 2898 | <body> |
| 2899 | <script async="" src="injected" /> |
| 2900 | <style>{'body { background-color: blue; }'}</style> |
| 2901 | <meta name="foo" content="foo" itemprop="a prop" /> |
| 2902 | <div itemscope=""> |
| 2903 | <div> |
| 2904 | <div>deep hello</div> |
| 2905 | <meta name="foo" content="foo" itemprop="a prop" /> |
| 2906 | </div> |
| 2907 | </div> |
| 2908 | <style>{'body { background-color: blue; }'}</style> |
| 2909 | <div /> |
| 2910 | <script async="" src="injected" /> |
| 2911 | </body> |
| 2912 | </html>, |
| 2913 | ); |
| 2914 | |
| 2915 | // We unmount. The nodes that remain are |
| 2916 | // 1. Hoisted resources (we don't clean these up on unmount to address races with streaming suspense and navigation) |
| 2917 | // 2. preloads that are injected to hint the browser to load a resource but are not associated to Fibers directly |
| 2918 | // 3. Nodes that React skipped over during hydration |
| 2919 | root.unmount(); |
| 2920 | expect(getMeaningfulChildren(document)).toEqual( |
| 2921 | <html> |
| 2922 | <head> |
| 2923 | <script async="" src="injected" /> |
| 2924 | <div /> |
| 2925 | <style>{'body { background-color: blue; }'}</style> |
| 2926 | <link rel="stylesheet" href="stylesheet" data-precedence="default" /> |
| 2927 | <script async="" src="rendered" /> |
| 2928 | <style>{'body { background-color: blue; }'}</style> |
| 2929 | <div /> |
| 2930 | <script async="" src="injected" /> |
| 2931 | </head> |
| 2932 | <body> |
| 2933 | <script async="" src="injected" /> |
| 2934 | <style>{'body { background-color: blue; }'}</style> |
| 2935 | <style>{'body { background-color: blue; }'}</style> |
| 2936 | <div /> |
| 2937 | <script async="" src="injected" /> |
| 2938 | </body> |
| 2939 | </html>, |
| 2940 | ); |
| 2941 | }); |
| 2942 | |
| 2943 | it('does not preload nomodule scripts', async () => { |
| 2944 | await act(() => { |
| 2945 | renderToPipeableStream( |
| 2946 | <html> |
| 2947 | <body> |
| 2948 | <script src="foo" noModule={true} data-meaningful="" /> |
| 2949 | <script async={true} src="bar" noModule={true} data-meaningful="" /> |
| 2950 | </body> |
| 2951 | </html>, |
| 2952 | ).pipe(writable); |
| 2953 | }); |
| 2954 | expect(getMeaningfulChildren(document)).toEqual( |
| 2955 | <html> |
| 2956 | <head> |
| 2957 | <script async="" src="bar" nomodule="" data-meaningful="" /> |
| 2958 | </head> |
| 2959 | <body> |
| 2960 | <script src="foo" nomodule="" data-meaningful="" /> |
| 2961 | </body> |
| 2962 | </html>, |
| 2963 | ); |
| 2964 | }); |
| 2965 | |
| 2966 | it('can delay commit until css resources load', async () => { |
| 2967 | const root = ReactDOMClient.createRoot(container); |
| 2968 | expect(getMeaningfulChildren(container)).toBe(undefined); |
| 2969 | React.startTransition(() => { |
| 2970 | root.render( |
| 2971 | <> |
| 2972 | <link rel="stylesheet" href="foo" precedence="default" /> |
| 2973 | <div>hello</div> |
| 2974 | </>, |
| 2975 | ); |
| 2976 | }); |
| 2977 | await waitForAll([]); |
| 2978 | expect(getMeaningfulChildren(container)).toBe(undefined); |
| 2979 | expect(getMeaningfulChildren(document.head)).toEqual( |
| 2980 | <link rel="preload" as="style" href="foo" />, |
| 2981 | ); |
| 2982 | |
| 2983 | loadPreloads(); |
| 2984 | assertLog(['load preload: foo']); |
| 2985 | |
| 2986 | // We expect that the stylesheet is inserted now but the commit has not happened yet. |
| 2987 | expect(getMeaningfulChildren(container)).toBe(undefined); |
| 2988 | expect(getMeaningfulChildren(document.head)).toEqual([ |
| 2989 | <link rel="stylesheet" href="foo" data-precedence="default" />, |
| 2990 | <link rel="preload" as="style" href="foo" />, |
| 2991 | ]); |
| 2992 | |
| 2993 | loadStylesheets(); |
| 2994 | assertLog(['load stylesheet: foo']); |
| 2995 | |
| 2996 | // We expect that the commit finishes synchronously after the stylesheet loads. |
| 2997 | expect(getMeaningfulChildren(container)).toEqual(<div>hello</div>); |
| 2998 | expect(getMeaningfulChildren(document.head)).toEqual([ |
| 2999 | <link rel="stylesheet" href="foo" data-precedence="default" />, |
| 3000 | <link rel="preload" as="style" href="foo" />, |
| 3001 | ]); |
| 3002 | }); |
| 3003 | |
| 3004 | // https://github.com/facebook/react/issues/27585 |
| 3005 | it('does not reinsert already inserted stylesheets during a delayed commit', async () => { |
| 3006 | await act(() => { |
| 3007 | renderToPipeableStream( |
| 3008 | <html> |
| 3009 | <body> |
| 3010 | <link rel="stylesheet" href="first" precedence="default" /> |
| 3011 | <link rel="stylesheet" href="second" precedence="default" /> |
| 3012 | server |
| 3013 | </body> |
| 3014 | </html>, |
| 3015 | ).pipe(writable); |
| 3016 | }); |
| 3017 | |
| 3018 | expect(getMeaningfulChildren(document)).toEqual( |
| 3019 | <html> |
| 3020 | <head> |
| 3021 | <link rel="stylesheet" href="first" data-precedence="default" /> |
| 3022 | <link rel="stylesheet" href="second" data-precedence="default" /> |
| 3023 | </head> |
| 3024 | <body>server</body> |
| 3025 | </html>, |
| 3026 | ); |
| 3027 | |
| 3028 | const root = ReactDOMClient.createRoot(document.body); |
| 3029 | expect(getMeaningfulChildren(container)).toBe(undefined); |
| 3030 | root.render( |
| 3031 | <> |
| 3032 | <link rel="stylesheet" href="first" precedence="default" /> |
| 3033 | <link rel="stylesheet" href="third" precedence="default" /> |
| 3034 | <div>client</div> |
| 3035 | </>, |
| 3036 | ); |
| 3037 | await waitForAll([]); |
| 3038 | await act(() => { |
| 3039 | loadPreloads(); |
| 3040 | loadStylesheets(); |
| 3041 | }); |
| 3042 | await assertLog([ |
| 3043 | 'load preload: third', |
| 3044 | 'load stylesheet: first', |
| 3045 | 'load stylesheet: second', |
| 3046 | 'load stylesheet: third', |
| 3047 | ]); |
| 3048 | expect(getMeaningfulChildren(document)).toEqual( |
| 3049 | <html> |
| 3050 | <head> |
| 3051 | <link rel="stylesheet" href="first" data-precedence="default" /> |
| 3052 | <link rel="stylesheet" href="second" data-precedence="default" /> |
| 3053 | <link rel="stylesheet" href="third" data-precedence="default" /> |
| 3054 | <link rel="preload" href="third" as="style" /> |
| 3055 | </head> |
| 3056 | <body> |
| 3057 | <div>client</div> |
| 3058 | </body> |
| 3059 | </html>, |
| 3060 | ); |
| 3061 | |
| 3062 | // In a transition we add another reference to an already loaded resource |
| 3063 | // https://github.com/facebook/react/issues/27585 |
| 3064 | React.startTransition(() => { |
| 3065 | root.render( |
| 3066 | <> |
| 3067 | <link rel="stylesheet" href="first" precedence="default" /> |
| 3068 | <link rel="stylesheet" href="third" precedence="default" /> |
| 3069 | <div>client</div> |
| 3070 | <link rel="stylesheet" href="first" precedence="default" /> |
| 3071 | </>, |
| 3072 | ); |
| 3073 | }); |
| 3074 | await waitForAll([]); |
| 3075 | // In https://github.com/facebook/react/issues/27585 the order updated |
| 3076 | // to second, third, first |
| 3077 | expect(getMeaningfulChildren(document)).toEqual( |
| 3078 | <html> |
| 3079 | <head> |
| 3080 | <link rel="stylesheet" href="first" data-precedence="default" /> |
| 3081 | <link rel="stylesheet" href="second" data-precedence="default" /> |
| 3082 | <link rel="stylesheet" href="third" data-precedence="default" /> |
| 3083 | <link rel="preload" href="third" as="style" /> |
| 3084 | </head> |
| 3085 | <body> |
| 3086 | <div>client</div> |
| 3087 | </body> |
| 3088 | </html>, |
| 3089 | ); |
| 3090 | }); |
| 3091 | |
| 3092 | // eslint-disable-next-line jest/no-disabled-tests |
| 3093 | it.skip('can delay commit until css resources error', async () => { |
| 3094 | // TODO: This test fails and crashes jest. need to figure out why before unskipping. |
| 3095 | const root = ReactDOMClient.createRoot(container); |
| 3096 | expect(getMeaningfulChildren(container)).toBe(undefined); |
| 3097 | React.startTransition(() => { |
| 3098 | root.render( |
| 3099 | <> |
| 3100 | <link rel="stylesheet" href="foo" precedence="default" /> |
| 3101 | <link rel="stylesheet" href="bar" precedence="default" /> |
| 3102 | <div>hello</div> |
| 3103 | </>, |
| 3104 | ); |
| 3105 | }); |
| 3106 | await waitForAll([]); |
| 3107 | expect(getMeaningfulChildren(container)).toBe(undefined); |
| 3108 | expect(getMeaningfulChildren(document.head)).toEqual([ |
| 3109 | <link rel="preload" as="style" href="foo" />, |
| 3110 | <link rel="preload" as="style" href="bar" />, |
| 3111 | ]); |
| 3112 | |
| 3113 | loadPreloads(['foo']); |
| 3114 | errorPreloads(['bar']); |
| 3115 | assertLog(['load preload: foo', 'error preload: bar']); |
| 3116 | |
| 3117 | // We expect that the stylesheet is inserted now but the commit has not happened yet. |
| 3118 | expect(getMeaningfulChildren(container)).toBe(undefined); |
| 3119 | expect(getMeaningfulChildren(document.head)).toEqual([ |
| 3120 | <link rel="stylesheet" href="foo" data-precedence="default" />, |
| 3121 | <link rel="stylesheet" href="bar" data-precedence="default" />, |
| 3122 | <link rel="preload" as="style" href="foo" />, |
| 3123 | <link rel="preload" as="style" href="bar" />, |
| 3124 | ]); |
| 3125 | |
| 3126 | errorStylesheets(['bar']); |
| 3127 | |
| 3128 | loadStylesheets(['foo']); |
| 3129 | assertLog(['load stylesheet: foo', 'error stylesheet: bar']); |
| 3130 | |
| 3131 | // We expect that the commit finishes synchronously after the stylesheet loads. |
| 3132 | expect(getMeaningfulChildren(container)).toEqual(<div>hello</div>); |
| 3133 | expect(getMeaningfulChildren(document.head)).toEqual([ |
| 3134 | <link rel="stylesheet" href="foo" data-precedence="default" />, |
| 3135 | <link rel="stylesheet" href="bar" data-precedence="default" />, |
| 3136 | <link rel="preload" as="style" href="foo" />, |
| 3137 | <link rel="preload" as="style" href="bar" />, |
| 3138 | ]); |
| 3139 | }); |
| 3140 | |
| 3141 | it('assumes stylesheets that load in the shell loaded already', async () => { |
| 3142 | await act(() => { |
| 3143 | renderToPipeableStream( |
| 3144 | <html> |
| 3145 | <body> |
| 3146 | <link rel="stylesheet" href="foo" precedence="default" /> |
| 3147 | hello |
| 3148 | </body> |
| 3149 | </html>, |
| 3150 | ).pipe(writable); |
| 3151 | }); |
| 3152 | |
| 3153 | let root; |
| 3154 | React.startTransition(() => { |
| 3155 | root = ReactDOMClient.hydrateRoot( |
| 3156 | document, |
| 3157 | <html> |
| 3158 | <body> |
| 3159 | <link rel="stylesheet" href="foo" precedence="default" /> |
| 3160 | hello |
| 3161 | </body> |
| 3162 | </html>, |
| 3163 | ); |
| 3164 | }); |
| 3165 | await waitForAll([]); |
| 3166 | expect(getMeaningfulChildren(document)).toEqual( |
| 3167 | <html> |
| 3168 | <head> |
| 3169 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 3170 | </head> |
| 3171 | <body>hello</body> |
| 3172 | </html>, |
| 3173 | ); |
| 3174 | |
| 3175 | React.startTransition(() => { |
| 3176 | root.render( |
| 3177 | <html> |
| 3178 | <body> |
| 3179 | <link rel="stylesheet" href="foo" precedence="default" /> |
| 3180 | hello2 |
| 3181 | </body> |
| 3182 | </html>, |
| 3183 | ); |
| 3184 | }); |
| 3185 | await waitForAll([]); |
| 3186 | expect(getMeaningfulChildren(document)).toEqual( |
| 3187 | <html> |
| 3188 | <head> |
| 3189 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 3190 | </head> |
| 3191 | <body>hello2</body> |
| 3192 | </html>, |
| 3193 | ); |
| 3194 | |
| 3195 | React.startTransition(() => { |
| 3196 | root.render( |
| 3197 | <html> |
| 3198 | <body> |
| 3199 | <link rel="stylesheet" href="foo" precedence="default" /> |
| 3200 | hello3 |
| 3201 | <link rel="stylesheet" href="bar" precedence="default" /> |
| 3202 | </body> |
| 3203 | </html>, |
| 3204 | ); |
| 3205 | }); |
| 3206 | await waitForAll([]); |
| 3207 | expect(getMeaningfulChildren(document)).toEqual( |
| 3208 | <html> |
| 3209 | <head> |
| 3210 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 3211 | <link rel="preload" href="bar" as="style" /> |
| 3212 | </head> |
| 3213 | <body>hello2</body> |
| 3214 | </html>, |
| 3215 | ); |
| 3216 | |
| 3217 | loadPreloads(); |
| 3218 | assertLog(['load preload: bar']); |
| 3219 | expect(getMeaningfulChildren(document)).toEqual( |
| 3220 | <html> |
| 3221 | <head> |
| 3222 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 3223 | <link rel="stylesheet" href="bar" data-precedence="default" /> |
| 3224 | <link rel="preload" href="bar" as="style" /> |
| 3225 | </head> |
| 3226 | <body>hello2</body> |
| 3227 | </html>, |
| 3228 | ); |
| 3229 | |
| 3230 | loadStylesheets(['bar']); |
| 3231 | assertLog(['load stylesheet: bar']); |
| 3232 | expect(getMeaningfulChildren(document)).toEqual( |
| 3233 | <html> |
| 3234 | <head> |
| 3235 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 3236 | <link rel="stylesheet" href="bar" data-precedence="default" /> |
| 3237 | <link rel="preload" href="bar" as="style" /> |
| 3238 | </head> |
| 3239 | <body>hello3</body> |
| 3240 | </html>, |
| 3241 | ); |
| 3242 | }); |
| 3243 | |
| 3244 | it('can interrupt a suspended commit with a new update', async () => { |
| 3245 | function App({children}) { |
| 3246 | return ( |
| 3247 | <html> |
| 3248 | <body>{children}</body> |
| 3249 | </html> |
| 3250 | ); |
| 3251 | } |
| 3252 | const root = ReactDOMClient.createRoot(document); |
| 3253 | |
| 3254 | // Do an initial render. This means subsequent insertions will suspend, |
| 3255 | // unless they are wrapped inside a fresh Suspense boundary. |
| 3256 | root.render(<App />); |
| 3257 | await waitForAll([]); |
| 3258 | |
| 3259 | // Insert a stylesheet. This will suspend because it's a transition. |
| 3260 | React.startTransition(() => { |
| 3261 | root.render( |
| 3262 | <App> |
| 3263 | hello |
| 3264 | <link rel="stylesheet" href="foo" precedence="default" /> |
| 3265 | </App>, |
| 3266 | ); |
| 3267 | }); |
| 3268 | await waitForAll([]); |
| 3269 | // Although the commit suspended, a preload was inserted. |
| 3270 | expect(getMeaningfulChildren(document)).toEqual( |
| 3271 | <html> |
| 3272 | <head> |
| 3273 | <link rel="preload" href="foo" as="style" /> |
| 3274 | </head> |
| 3275 | <body /> |
| 3276 | </html>, |
| 3277 | ); |
| 3278 | |
| 3279 | // Before the stylesheet has loaded, do an urgent update. This will insert a |
| 3280 | // different stylesheet, and cancel the first one. This stylesheet will not |
| 3281 | // suspend, even though it hasn't loaded, because it's an urgent update. |
| 3282 | root.render( |
| 3283 | <App> |
| 3284 | hello2 |
| 3285 | {null} |
| 3286 | <link rel="stylesheet" href="bar" precedence="default" /> |
| 3287 | </App>, |
| 3288 | ); |
| 3289 | await waitForAll([]); |
| 3290 | await act(() => { |
| 3291 | loadPreloads(['bar']); |
| 3292 | loadStylesheets(['bar']); |
| 3293 | }); |
| 3294 | await assertLog(['load preload: bar', 'load stylesheet: bar']); |
| 3295 | |
| 3296 | // The bar stylesheet was inserted. There's still a "foo" preload, even |
| 3297 | // though that update was superseded. |
| 3298 | expect(getMeaningfulChildren(document)).toEqual( |
| 3299 | <html> |
| 3300 | <head> |
| 3301 | <link rel="stylesheet" href="bar" data-precedence="default" /> |
| 3302 | <link rel="preload" href="foo" as="style" /> |
| 3303 | <link rel="preload" href="bar" as="style" /> |
| 3304 | </head> |
| 3305 | <body>hello2</body> |
| 3306 | </html>, |
| 3307 | ); |
| 3308 | |
| 3309 | // When "foo" finishes loading, nothing happens, because "foo" was not |
| 3310 | // included in the last root update. However, if we insert "foo" again |
| 3311 | // later, it should immediately commit without suspending, because it's |
| 3312 | // been preloaded. |
| 3313 | loadPreloads(['foo']); |
| 3314 | assertLog(['load preload: foo']); |
| 3315 | expect(getMeaningfulChildren(document)).toEqual( |
| 3316 | <html> |
| 3317 | <head> |
| 3318 | <link rel="stylesheet" href="bar" data-precedence="default" /> |
| 3319 | <link rel="preload" href="foo" as="style" /> |
| 3320 | <link rel="preload" href="bar" as="style" /> |
| 3321 | </head> |
| 3322 | <body>hello2</body> |
| 3323 | </html>, |
| 3324 | ); |
| 3325 | |
| 3326 | // Now insert "foo" again. |
| 3327 | React.startTransition(() => { |
| 3328 | root.render( |
| 3329 | <App> |
| 3330 | hello3 |
| 3331 | <link rel="stylesheet" href="foo" precedence="default" /> |
| 3332 | <link rel="stylesheet" href="bar" precedence="default" /> |
| 3333 | </App>, |
| 3334 | ); |
| 3335 | }); |
| 3336 | await waitForAll([]); |
| 3337 | // Commits without suspending because "foo" was preloaded. |
| 3338 | expect(getMeaningfulChildren(document)).toEqual( |
| 3339 | <html> |
| 3340 | <head> |
| 3341 | <link rel="stylesheet" href="bar" data-precedence="default" /> |
| 3342 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 3343 | <link rel="preload" href="foo" as="style" /> |
| 3344 | <link rel="preload" href="bar" as="style" /> |
| 3345 | </head> |
| 3346 | <body>hello3</body> |
| 3347 | </html>, |
| 3348 | ); |
| 3349 | |
| 3350 | loadStylesheets(['foo']); |
| 3351 | assertLog(['load stylesheet: foo']); |
| 3352 | expect(getMeaningfulChildren(document)).toEqual( |
| 3353 | <html> |
| 3354 | <head> |
| 3355 | <link rel="stylesheet" href="bar" data-precedence="default" /> |
| 3356 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 3357 | <link rel="preload" href="foo" as="style" /> |
| 3358 | <link rel="preload" href="bar" as="style" /> |
| 3359 | </head> |
| 3360 | <body>hello3</body> |
| 3361 | </html>, |
| 3362 | ); |
| 3363 | }); |
| 3364 | |
| 3365 | it('will put a Suspense boundary into fallback if it contains a stylesheet not loaded during a sync update', async () => { |
| 3366 | function App({children}) { |
| 3367 | return ( |
| 3368 | <html> |
| 3369 | <body>{children}</body> |
| 3370 | </html> |
| 3371 | ); |
| 3372 | } |
| 3373 | const root = ReactDOMClient.createRoot(document); |
| 3374 | |
| 3375 | await clientAct(() => { |
| 3376 | root.render(<App />); |
| 3377 | }); |
| 3378 | await waitForAll([]); |
| 3379 | |
| 3380 | await clientAct(() => { |
| 3381 | root.render( |
| 3382 | <App> |
| 3383 | <Suspense fallback="loading..."> |
| 3384 | <div> |
| 3385 | hello |
| 3386 | <link rel="stylesheet" href="foo" precedence="default" /> |
| 3387 | </div> |
| 3388 | </Suspense> |
| 3389 | </App>, |
| 3390 | ); |
| 3391 | }); |
| 3392 | await waitForAll([]); |
| 3393 | |
| 3394 | if (gate(flags => flags.alwaysThrottleRetries)) { |
| 3395 | // Although the commit suspended, a preload was inserted. |
| 3396 | expect(getMeaningfulChildren(document)).toEqual( |
| 3397 | <html> |
| 3398 | <head> |
| 3399 | <link rel="preload" href="foo" as="style" /> |
| 3400 | </head> |
| 3401 | <body>loading...</body> |
| 3402 | </html>, |
| 3403 | ); |
| 3404 | |
| 3405 | loadPreloads(['foo']); |
| 3406 | assertLog(['load preload: foo']); |
| 3407 | expect(getMeaningfulChildren(document)).toEqual( |
| 3408 | <html> |
| 3409 | <head> |
| 3410 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 3411 | <link rel="preload" href="foo" as="style" /> |
| 3412 | </head> |
| 3413 | <body>loading...</body> |
| 3414 | </html>, |
| 3415 | ); |
| 3416 | } |
| 3417 | |
| 3418 | loadStylesheets(['foo']); |
| 3419 | assertLog(['load stylesheet: foo']); |
| 3420 | expect(getMeaningfulChildren(document)).toEqual( |
| 3421 | <html> |
| 3422 | <head> |
| 3423 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 3424 | <link rel="preload" href="foo" as="style" /> |
| 3425 | </head> |
| 3426 | <body> |
| 3427 | <div>hello</div> |
| 3428 | </body> |
| 3429 | </html>, |
| 3430 | ); |
| 3431 | |
| 3432 | await clientAct(() => { |
| 3433 | root.render( |
| 3434 | <App> |
| 3435 | <Suspense fallback="loading..."> |
| 3436 | <div> |
| 3437 | hello |
| 3438 | <link rel="stylesheet" href="foo" precedence="default" /> |
| 3439 | <link rel="stylesheet" href="bar" precedence="default" /> |
| 3440 | </div> |
| 3441 | </Suspense> |
| 3442 | </App>, |
| 3443 | ); |
| 3444 | }); |
| 3445 | await waitForAll([]); |
| 3446 | if (gate(flags => flags.alwaysThrottleRetries)) { |
| 3447 | expect(getMeaningfulChildren(document)).toEqual( |
| 3448 | <html> |
| 3449 | <head> |
| 3450 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 3451 | <link rel="preload" href="foo" as="style" /> |
| 3452 | <link rel="preload" href="bar" as="style" /> |
| 3453 | </head> |
| 3454 | <body> |
| 3455 | <div style="display: none;">hello</div>loading... |
| 3456 | </body> |
| 3457 | </html>, |
| 3458 | ); |
| 3459 | |
| 3460 | loadPreloads(['bar']); |
| 3461 | assertLog(['load preload: bar']); |
| 3462 | expect(getMeaningfulChildren(document)).toEqual( |
| 3463 | <html> |
| 3464 | <head> |
| 3465 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 3466 | <link rel="stylesheet" href="bar" data-precedence="default" /> |
| 3467 | <link rel="preload" href="foo" as="style" /> |
| 3468 | <link rel="preload" href="bar" as="style" /> |
| 3469 | </head> |
| 3470 | <body> |
| 3471 | <div style="display: none;">hello</div>loading... |
| 3472 | </body> |
| 3473 | </html>, |
| 3474 | ); |
| 3475 | } |
| 3476 | loadStylesheets(['bar']); |
| 3477 | assertLog(['load stylesheet: bar']); |
| 3478 | expect(getMeaningfulChildren(document)).toEqual( |
| 3479 | <html> |
| 3480 | <head> |
| 3481 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 3482 | <link rel="stylesheet" href="bar" data-precedence="default" /> |
| 3483 | <link rel="preload" href="foo" as="style" /> |
| 3484 | <link rel="preload" href="bar" as="style" /> |
| 3485 | </head> |
| 3486 | <body> |
| 3487 | <div style="">hello</div> |
| 3488 | </body> |
| 3489 | </html>, |
| 3490 | ); |
| 3491 | }); |
| 3492 | |
| 3493 | it('will assume stylesheets already in the document have loaded if it cannot confirm it is not yet loaded', async () => { |
| 3494 | await act(() => { |
| 3495 | renderToPipeableStream( |
| 3496 | <html> |
| 3497 | <head> |
| 3498 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 3499 | </head> |
| 3500 | <body> |
| 3501 | <div id="foo" /> |
| 3502 | </body> |
| 3503 | </html>, |
| 3504 | ).pipe(writable); |
| 3505 | }); |
| 3506 | |
| 3507 | const root = ReactDOMClient.createRoot(document.querySelector('#foo')); |
| 3508 | |
| 3509 | root.render( |
| 3510 | <div> |
| 3511 | <Suspense fallback="loading..."> |
| 3512 | <link rel="stylesheet" href="foo" precedence="default" /> |
| 3513 | hello world |
| 3514 | </Suspense> |
| 3515 | </div>, |
| 3516 | ); |
| 3517 | |
| 3518 | await waitForAll([]); |
| 3519 | expect(getMeaningfulChildren(document)).toEqual( |
| 3520 | <html> |
| 3521 | <head> |
| 3522 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 3523 | </head> |
| 3524 | <body> |
| 3525 | <div id="foo"> |
| 3526 | <div>hello world</div> |
| 3527 | </div> |
| 3528 | </body> |
| 3529 | </html>, |
| 3530 | ); |
| 3531 | }); |
| 3532 | |
| 3533 | it('will assume wait for loading stylesheets to load before continuing', async () => { |
| 3534 | let ssr = true; |
| 3535 | function Component() { |
| 3536 | if (ssr) { |
| 3537 | return null; |
| 3538 | } else { |
| 3539 | return ( |
| 3540 | <> |
| 3541 | <link rel="stylesheet" href="foo" precedence="default" /> |
| 3542 | <div>hello client</div> |
| 3543 | </> |
| 3544 | ); |
| 3545 | } |
| 3546 | } |
| 3547 | |
| 3548 | await act(() => { |
| 3549 | renderToPipeableStream( |
| 3550 | <html> |
| 3551 | <body> |
| 3552 | <div> |
| 3553 | <Suspense fallback="loading..."> |
| 3554 | <BlockedOn value="reveal"> |
| 3555 | <link rel="stylesheet" href="foo" precedence="default" /> |
| 3556 | <div>hello world</div> |
| 3557 | </BlockedOn> |
| 3558 | </Suspense> |
| 3559 | </div> |
| 3560 | <div> |
| 3561 | <Suspense fallback="loading 2..."> |
| 3562 | <Component /> |
| 3563 | </Suspense> |
| 3564 | </div> |
| 3565 | </body> |
| 3566 | </html>, |
| 3567 | ).pipe(writable); |
| 3568 | }); |
| 3569 | |
| 3570 | expect(getMeaningfulChildren(document)).toEqual( |
| 3571 | <html> |
| 3572 | <head /> |
| 3573 | <body> |
| 3574 | <div>loading...</div> |
| 3575 | <div /> |
| 3576 | </body> |
| 3577 | </html>, |
| 3578 | ); |
| 3579 | |
| 3580 | await act(() => { |
| 3581 | resolveText('reveal'); |
| 3582 | }); |
| 3583 | |
| 3584 | expect(getMeaningfulChildren(document)).toEqual( |
| 3585 | <html> |
| 3586 | <head> |
| 3587 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 3588 | </head> |
| 3589 | <body> |
| 3590 | <div>loading...</div> |
| 3591 | <div /> |
| 3592 | <link rel="preload" href="foo" as="style" /> |
| 3593 | </body> |
| 3594 | </html>, |
| 3595 | ); |
| 3596 | |
| 3597 | ssr = false; |
| 3598 | |
| 3599 | ReactDOMClient.hydrateRoot( |
| 3600 | document, |
| 3601 | <html> |
| 3602 | <body> |
| 3603 | <div> |
| 3604 | <Suspense fallback="loading..."> |
| 3605 | <BlockedOn value="reveal"> |
| 3606 | <link rel="stylesheet" href="foo" precedence="default" /> |
| 3607 | <div>hello world</div> |
| 3608 | </BlockedOn> |
| 3609 | </Suspense> |
| 3610 | </div> |
| 3611 | <div> |
| 3612 | <Suspense fallback="loading 2..."> |
| 3613 | <Component /> |
| 3614 | </Suspense> |
| 3615 | </div> |
| 3616 | </body> |
| 3617 | </html>, |
| 3618 | ); |
| 3619 | await waitForAll([]); |
| 3620 | |
| 3621 | expect(getMeaningfulChildren(document)).toEqual( |
| 3622 | <html> |
| 3623 | <head> |
| 3624 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 3625 | </head> |
| 3626 | <body> |
| 3627 | <div>loading...</div> |
| 3628 | <div /> |
| 3629 | <link rel="preload" href="foo" as="style" /> |
| 3630 | </body> |
| 3631 | </html>, |
| 3632 | ); |
| 3633 | |
| 3634 | loadStylesheets(); |
| 3635 | assertLog(['load stylesheet: foo']); |
| 3636 | await waitForAll([]); |
| 3637 | assertConsoleErrorDev([ |
| 3638 | "Error: Hydration failed because the server rendered HTML didn't match the client. " + |
| 3639 | 'As a result this tree will be regenerated on the client. This can happen if a SSR-ed Client Component used:\n\n' + |
| 3640 | "- A server/client branch `if (typeof window !== 'undefined')`.\n" + |
| 3641 | "- Variable input such as `Date.now()` or `Math.random()` which changes each time it's called.\n" + |
| 3642 | "- Date formatting in a user's locale which doesn't match the server.\n" + |
| 3643 | '- External changing data without sending a snapshot of it along with the HTML.\n' + |
| 3644 | '- Invalid HTML tag nesting.\n\n' + |
| 3645 | 'It can also happen if the client has a browser extension installed which messes with the HTML before React loaded.\n\n' + |
| 3646 | 'https://react.dev/link/hydration-mismatch\n\n' + |
| 3647 | ' <html>\n' + |
| 3648 | ' <body>\n' + |
| 3649 | ' <div>\n' + |
| 3650 | ' <div>\n' + |
| 3651 | ' <Suspense fallback="loading 2...">\n' + |
| 3652 | ' <Component>\n' + |
| 3653 | ' <link>\n' + |
| 3654 | '+ <div>' + |
| 3655 | '\n in <stack>', |
| 3656 | ]); |
| 3657 | jest.runAllTimers(); |
| 3658 | |
| 3659 | expect(getMeaningfulChildren(document)).toEqual( |
| 3660 | <html> |
| 3661 | <head> |
| 3662 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 3663 | </head> |
| 3664 | <body> |
| 3665 | <div> |
| 3666 | <div>hello world</div> |
| 3667 | </div> |
| 3668 | <div> |
| 3669 | <div>hello client</div> |
| 3670 | </div> |
| 3671 | <link rel="preload" href="foo" as="style" /> |
| 3672 | </body> |
| 3673 | </html>, |
| 3674 | ); |
| 3675 | }); |
| 3676 | |
| 3677 | it('does not suspend a transition on a stylesheet whose preload has already loaded', async () => { |
| 3678 | const root = ReactDOMClient.createRoot(document); |
| 3679 | root.render( |
| 3680 | <html> |
| 3681 | <body> |
| 3682 | <Suspense fallback="loading...">initial</Suspense> |
| 3683 | </body> |
| 3684 | </html>, |
| 3685 | ); |
| 3686 | await waitForAll([]); |
| 3687 | |
| 3688 | ReactDOM.preload('route.css', {as: 'style'}); |
| 3689 | expect(getMeaningfulChildren(document.head)).toEqual( |
| 3690 | <link rel="preload" href="route.css" as="style" />, |
| 3691 | ); |
| 3692 | expect(getMeaningfulChildren(document.body)).toEqual('initial'); |
| 3693 | |
| 3694 | loadPreloads(['route.css']); |
| 3695 | assertLog(['load preload: route.css']); |
| 3696 | |
| 3697 | React.startTransition(() => { |
| 3698 | root.render( |
| 3699 | <html> |
| 3700 | <body> |
| 3701 | <Suspense fallback="loading..."> |
| 3702 | <link rel="stylesheet" href="route.css" precedence="default" /> |
| 3703 | next |
| 3704 | </Suspense> |
| 3705 | </body> |
| 3706 | </html>, |
| 3707 | ); |
| 3708 | }); |
| 3709 | await waitForAll([]); |
| 3710 | |
| 3711 | expect(getMeaningfulChildren(document.head)).toEqual([ |
| 3712 | <link rel="stylesheet" href="route.css" data-precedence="default" />, |
| 3713 | <link rel="preload" href="route.css" as="style" />, |
| 3714 | ]); |
| 3715 | expect(getMeaningfulChildren(document.body)).toEqual('next'); |
| 3716 | |
| 3717 | loadStylesheets(['route.css']); |
| 3718 | assertLog(['load stylesheet: route.css']); |
| 3719 | expect(getMeaningfulChildren(document.head)).toEqual([ |
| 3720 | <link rel="stylesheet" href="route.css" data-precedence="default" />, |
| 3721 | <link rel="preload" href="route.css" as="style" />, |
| 3722 | ]); |
| 3723 | expect(getMeaningfulChildren(document.body)).toEqual('next'); |
| 3724 | }); |
| 3725 | |
| 3726 | it('suspends a transition on a stylesheet whose preload has not loaded yet', async () => { |
| 3727 | const root = ReactDOMClient.createRoot(document); |
| 3728 | root.render( |
| 3729 | <html> |
| 3730 | <body> |
| 3731 | <Suspense fallback="loading...">initial</Suspense> |
| 3732 | </body> |
| 3733 | </html>, |
| 3734 | ); |
| 3735 | await waitForAll([]); |
| 3736 | |
| 3737 | ReactDOM.preload('route.css', {as: 'style'}); |
| 3738 | expect(getMeaningfulChildren(document.head)).toEqual( |
| 3739 | <link rel="preload" href="route.css" as="style" />, |
| 3740 | ); |
| 3741 | expect(getMeaningfulChildren(document.body)).toEqual('initial'); |
| 3742 | |
| 3743 | React.startTransition(() => { |
| 3744 | root.render( |
| 3745 | <html> |
| 3746 | <body> |
| 3747 | <Suspense fallback="loading..."> |
| 3748 | <link rel="stylesheet" href="route.css" precedence="default" /> |
| 3749 | next |
| 3750 | </Suspense> |
| 3751 | </body> |
| 3752 | </html>, |
| 3753 | ); |
| 3754 | }); |
| 3755 | await waitForAll([]); |
| 3756 | |
| 3757 | expect(getMeaningfulChildren(document.head)).toEqual( |
| 3758 | <link rel="preload" href="route.css" as="style" />, |
| 3759 | ); |
| 3760 | expect(getMeaningfulChildren(document.body)).toEqual('initial'); |
| 3761 | |
| 3762 | loadPreloads(['route.css']); |
| 3763 | assertLog(['load preload: route.css']); |
| 3764 | await waitForAll([]); |
| 3765 | expect(getMeaningfulChildren(document.head)).toEqual([ |
| 3766 | <link rel="stylesheet" href="route.css" data-precedence="default" />, |
| 3767 | <link rel="preload" href="route.css" as="style" />, |
| 3768 | ]); |
| 3769 | expect(getMeaningfulChildren(document.body)).toEqual('initial'); |
| 3770 | |
| 3771 | loadStylesheets(['route.css']); |
| 3772 | assertLog(['load stylesheet: route.css']); |
| 3773 | await waitForAll([]); |
| 3774 | expect(getMeaningfulChildren(document.head)).toEqual([ |
| 3775 | <link rel="stylesheet" href="route.css" data-precedence="default" />, |
| 3776 | <link rel="preload" href="route.css" as="style" />, |
| 3777 | ]); |
| 3778 | expect(getMeaningfulChildren(document.body)).toEqual('next'); |
| 3779 | }); |
| 3780 | |
| 3781 | it('can suspend commits on more than one root for the same resource at the same time', async () => { |
| 3782 | document.body.innerHTML = ''; |
| 3783 | const container1 = document.createElement('div'); |
| 3784 | const container2 = document.createElement('div'); |
| 3785 | document.body.appendChild(container1); |
| 3786 | document.body.appendChild(container2); |
| 3787 | |
| 3788 | const root1 = ReactDOMClient.createRoot(container1); |
| 3789 | const root2 = ReactDOMClient.createRoot(container2); |
| 3790 | |
| 3791 | React.startTransition(() => { |
| 3792 | root1.render( |
| 3793 | <div> |
| 3794 | one |
| 3795 | <link rel="stylesheet" href="foo" precedence="default" /> |
| 3796 | <link rel="stylesheet" href="one" precedence="default" /> |
| 3797 | </div>, |
| 3798 | ); |
| 3799 | }); |
| 3800 | await waitForAll([]); |
| 3801 | React.startTransition(() => { |
| 3802 | root2.render( |
| 3803 | <div> |
| 3804 | two |
| 3805 | <link rel="stylesheet" href="foo" precedence="default" /> |
| 3806 | <link rel="stylesheet" href="two" precedence="default" /> |
| 3807 | </div>, |
| 3808 | ); |
| 3809 | }); |
| 3810 | await waitForAll([]); |
| 3811 | |
| 3812 | expect(getMeaningfulChildren(document)).toEqual( |
| 3813 | <html> |
| 3814 | <head> |
| 3815 | <link rel="preload" href="foo" as="style" /> |
| 3816 | <link rel="preload" href="one" as="style" /> |
| 3817 | <link rel="preload" href="two" as="style" /> |
| 3818 | </head> |
| 3819 | <body> |
| 3820 | <div /> |
| 3821 | <div /> |
| 3822 | </body> |
| 3823 | </html>, |
| 3824 | ); |
| 3825 | |
| 3826 | loadPreloads(['foo', 'two']); |
| 3827 | assertLog(['load preload: foo', 'load preload: two']); |
| 3828 | expect(getMeaningfulChildren(document)).toEqual( |
| 3829 | <html> |
| 3830 | <head> |
| 3831 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 3832 | <link rel="stylesheet" href="two" data-precedence="default" /> |
| 3833 | <link rel="preload" href="foo" as="style" /> |
| 3834 | <link rel="preload" href="one" as="style" /> |
| 3835 | <link rel="preload" href="two" as="style" /> |
| 3836 | </head> |
| 3837 | <body> |
| 3838 | <div /> |
| 3839 | <div /> |
| 3840 | </body> |
| 3841 | </html>, |
| 3842 | ); |
| 3843 | |
| 3844 | loadStylesheets(['foo', 'two']); |
| 3845 | assertLog(['load stylesheet: foo', 'load stylesheet: two']); |
| 3846 | expect(getMeaningfulChildren(document)).toEqual( |
| 3847 | <html> |
| 3848 | <head> |
| 3849 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 3850 | <link rel="stylesheet" href="two" data-precedence="default" /> |
| 3851 | <link rel="preload" href="foo" as="style" /> |
| 3852 | <link rel="preload" href="one" as="style" /> |
| 3853 | <link rel="preload" href="two" as="style" /> |
| 3854 | </head> |
| 3855 | <body> |
| 3856 | <div /> |
| 3857 | <div> |
| 3858 | <div>two</div> |
| 3859 | </div> |
| 3860 | </body> |
| 3861 | </html>, |
| 3862 | ); |
| 3863 | |
| 3864 | loadPreloads(); |
| 3865 | loadStylesheets(); |
| 3866 | assertLog(['load preload: one', 'load stylesheet: one']); |
| 3867 | expect(getMeaningfulChildren(document)).toEqual( |
| 3868 | <html> |
| 3869 | <head> |
| 3870 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 3871 | <link rel="stylesheet" href="two" data-precedence="default" /> |
| 3872 | <link rel="stylesheet" href="one" data-precedence="default" /> |
| 3873 | <link rel="preload" href="foo" as="style" /> |
| 3874 | <link rel="preload" href="one" as="style" /> |
| 3875 | <link rel="preload" href="two" as="style" /> |
| 3876 | </head> |
| 3877 | <body> |
| 3878 | <div> |
| 3879 | <div>one</div> |
| 3880 | </div> |
| 3881 | <div> |
| 3882 | <div>two</div> |
| 3883 | </div> |
| 3884 | </body> |
| 3885 | </html>, |
| 3886 | ); |
| 3887 | }); |
| 3888 | |
| 3889 | it('stylesheets block render, with a really long timeout', async () => { |
| 3890 | function App({children}) { |
| 3891 | return ( |
| 3892 | <html> |
| 3893 | <body>{children}</body> |
| 3894 | </html> |
| 3895 | ); |
| 3896 | } |
| 3897 | const root = ReactDOMClient.createRoot(document); |
| 3898 | root.render(<App />); |
| 3899 | React.startTransition(() => { |
| 3900 | root.render( |
| 3901 | <App> |
| 3902 | hello |
| 3903 | <link rel="stylesheet" href="foo" precedence="default" /> |
| 3904 | </App>, |
| 3905 | ); |
| 3906 | }); |
| 3907 | await waitForAll([]); |
| 3908 | expect(getMeaningfulChildren(document)).toEqual( |
| 3909 | <html> |
| 3910 | <head> |
| 3911 | <link rel="preload" href="foo" as="style" /> |
| 3912 | </head> |
| 3913 | <body /> |
| 3914 | </html>, |
| 3915 | ); |
| 3916 | |
| 3917 | // Advance time by 50 seconds. Even still, the transition is suspended. |
| 3918 | jest.advanceTimersByTime(50000); |
| 3919 | await waitForAll([]); |
| 3920 | expect(getMeaningfulChildren(document)).toEqual( |
| 3921 | <html> |
| 3922 | <head> |
| 3923 | <link rel="preload" href="foo" as="style" /> |
| 3924 | </head> |
| 3925 | <body /> |
| 3926 | </html>, |
| 3927 | ); |
| 3928 | |
| 3929 | // Advance time by 10 seconds more. A full minute total has elapsed. At this |
| 3930 | // point, something must have really gone wrong, so we time out and allow |
| 3931 | // unstyled content to be displayed. |
| 3932 | jest.advanceTimersByTime(10000); |
| 3933 | expect(getMeaningfulChildren(document)).toEqual( |
| 3934 | <html> |
| 3935 | <head> |
| 3936 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 3937 | <link rel="preload" href="foo" as="style" /> |
| 3938 | </head> |
| 3939 | <body>hello</body> |
| 3940 | </html>, |
| 3941 | ); |
| 3942 | |
| 3943 | // We will load these after the commit finishes to ensure nothing errors and nothing new inserts |
| 3944 | loadPreloads(['foo']); |
| 3945 | loadStylesheets(['foo']); |
| 3946 | expect(getMeaningfulChildren(document)).toEqual( |
| 3947 | <html> |
| 3948 | <head> |
| 3949 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 3950 | <link rel="preload" href="foo" as="style" /> |
| 3951 | </head> |
| 3952 | <body>hello</body> |
| 3953 | </html>, |
| 3954 | ); |
| 3955 | }); |
| 3956 | |
| 3957 | it('can interrupt a suspended commit with a new transition', async () => { |
| 3958 | function App({children}) { |
| 3959 | return ( |
| 3960 | <html> |
| 3961 | <body>{children}</body> |
| 3962 | </html> |
| 3963 | ); |
| 3964 | } |
| 3965 | const root = ReactDOMClient.createRoot(document); |
| 3966 | root.render(<App>(empty)</App>); |
| 3967 | |
| 3968 | // Start a transition to "A" |
| 3969 | React.startTransition(() => { |
| 3970 | root.render( |
| 3971 | <App> |
| 3972 | A |
| 3973 | <link rel="stylesheet" href="A" precedence="default" /> |
| 3974 | </App>, |
| 3975 | ); |
| 3976 | }); |
| 3977 | await waitForAll([]); |
| 3978 | |
| 3979 | // "A" hasn't loaded yet, so we remain on the initial UI. Its preload |
| 3980 | // has been inserted into the head, though. |
| 3981 | expect(getMeaningfulChildren(document)).toEqual( |
| 3982 | <html> |
| 3983 | <head> |
| 3984 | <link rel="preload" href="A" as="style" /> |
| 3985 | </head> |
| 3986 | <body>(empty)</body> |
| 3987 | </html>, |
| 3988 | ); |
| 3989 | |
| 3990 | // Interrupt the "A" transition with a new one, "B" |
| 3991 | React.startTransition(() => { |
| 3992 | root.render( |
| 3993 | <App> |
| 3994 | B |
| 3995 | <link rel="stylesheet" href="B" precedence="default" /> |
| 3996 | </App>, |
| 3997 | ); |
| 3998 | }); |
| 3999 | await waitForAll([]); |
| 4000 | |
| 4001 | // Still on the initial UI because "B" hasn't loaded, but its preload |
| 4002 | // is now in the head, too. |
| 4003 | expect(getMeaningfulChildren(document)).toEqual( |
| 4004 | <html> |
| 4005 | <head> |
| 4006 | <link rel="preload" href="A" as="style" /> |
| 4007 | <link rel="preload" href="B" as="style" /> |
| 4008 | </head> |
| 4009 | <body>(empty)</body> |
| 4010 | </html>, |
| 4011 | ); |
| 4012 | |
| 4013 | // Finish loading |
| 4014 | loadPreloads(); |
| 4015 | loadStylesheets(); |
| 4016 | assertLog(['load preload: A', 'load preload: B', 'load stylesheet: B']); |
| 4017 | // The "B" transition has finished. |
| 4018 | expect(getMeaningfulChildren(document)).toEqual( |
| 4019 | <html> |
| 4020 | <head> |
| 4021 | <link rel="stylesheet" href="B" data-precedence="default" /> |
| 4022 | <link rel="preload" href="A" as="style" /> |
| 4023 | <link rel="preload" href="B" as="style" /> |
| 4024 | </head> |
| 4025 | <body>B</body> |
| 4026 | </html>, |
| 4027 | ); |
| 4028 | }); |
| 4029 | |
| 4030 | it('loading a stylesheet as part of an error boundary UI, during initial render', async () => { |
| 4031 | class ErrorBoundary extends React.Component { |
| 4032 | state = {error: null}; |
| 4033 | static getDerivedStateFromError(error) { |
| 4034 | return {error}; |
| 4035 | } |
| 4036 | render() { |
| 4037 | const error = this.state.error; |
| 4038 | if (error !== null) { |
| 4039 | return ( |
| 4040 | <> |
| 4041 | <link rel="stylesheet" href="A" precedence="default" /> |
| 4042 | {error.message} |
| 4043 | </> |
| 4044 | ); |
| 4045 | } |
| 4046 | return this.props.children; |
| 4047 | } |
| 4048 | } |
| 4049 | |
| 4050 | function Throws() { |
| 4051 | throw new Error('Oops!'); |
| 4052 | } |
| 4053 | |
| 4054 | function App() { |
| 4055 | return ( |
| 4056 | <html> |
| 4057 | <body> |
| 4058 | <ErrorBoundary> |
| 4059 | <Suspense fallback="Loading..."> |
| 4060 | <Throws /> |
| 4061 | </Suspense> |
| 4062 | </ErrorBoundary> |
| 4063 | </body> |
| 4064 | </html> |
| 4065 | ); |
| 4066 | } |
| 4067 | |
| 4068 | // Initial server render. Because something threw, a Suspense fallback |
| 4069 | // is shown. |
| 4070 | await act(() => { |
| 4071 | renderToPipeableStream(<App />, { |
| 4072 | onError(x) { |
| 4073 | Scheduler.log('Caught server error: ' + x.message); |
| 4074 | }, |
| 4075 | }).pipe(writable); |
| 4076 | }); |
| 4077 | expect(getMeaningfulChildren(document)).toEqual( |
| 4078 | <html> |
| 4079 | <head /> |
| 4080 | <body>Loading...</body> |
| 4081 | </html>, |
| 4082 | ); |
| 4083 | assertLog(['Caught server error: Oops!']); |
| 4084 | |
| 4085 | // Hydrate the tree. The error boundary will capture the error and attempt |
| 4086 | // to show an error screen. However, the error screen includes a stylesheet, |
| 4087 | // so the commit should suspend until the stylesheet loads. |
| 4088 | ReactDOMClient.hydrateRoot(document, <App />); |
| 4089 | await waitForAll([]); |
| 4090 | |
| 4091 | // A preload for the stylesheet is inserted, but we still haven't committed |
| 4092 | // the error screen. |
| 4093 | expect(getMeaningfulChildren(document)).toEqual( |
| 4094 | <html> |
| 4095 | <head> |
| 4096 | <link as="style" href="A" rel="preload" /> |
| 4097 | </head> |
| 4098 | <body>Loading...</body> |
| 4099 | </html>, |
| 4100 | ); |
| 4101 | |
| 4102 | // Finish loading the stylesheets. The commit should be unblocked, and the |
| 4103 | // error screen should appear. |
| 4104 | await clientAct(() => loadStylesheets()); |
| 4105 | expect(getMeaningfulChildren(document)).toEqual( |
| 4106 | <html> |
| 4107 | <head> |
| 4108 | <link data-precedence="default" href="A" rel="stylesheet" /> |
| 4109 | <link as="style" href="A" rel="preload" /> |
| 4110 | </head> |
| 4111 | <body>Oops!</body> |
| 4112 | </html>, |
| 4113 | ); |
| 4114 | }); |
| 4115 | |
| 4116 | it('will not flush a preload for a new rendered Stylesheet Resource if one was already flushed', async () => { |
| 4117 | function Component() { |
| 4118 | ReactDOM.preload('foo', {as: 'style'}); |
| 4119 | return ( |
| 4120 | <div> |
| 4121 | <Suspense fallback="loading..."> |
| 4122 | <BlockedOn value="blocked"> |
| 4123 | <link rel="stylesheet" href="foo" precedence="default" /> |
| 4124 | hello |
| 4125 | </BlockedOn> |
| 4126 | </Suspense> |
| 4127 | </div> |
| 4128 | ); |
| 4129 | } |
| 4130 | await act(() => { |
| 4131 | renderToPipeableStream( |
| 4132 | <html> |
| 4133 | <body> |
| 4134 | <Component /> |
| 4135 | </body> |
| 4136 | </html>, |
| 4137 | ).pipe(writable); |
| 4138 | }); |
| 4139 | |
| 4140 | expect(getMeaningfulChildren(document)).toEqual( |
| 4141 | <html> |
| 4142 | <head> |
| 4143 | <link rel="preload" as="style" href="foo" /> |
| 4144 | </head> |
| 4145 | <body> |
| 4146 | <div>loading...</div> |
| 4147 | </body> |
| 4148 | </html>, |
| 4149 | ); |
| 4150 | await act(() => { |
| 4151 | resolveText('blocked'); |
| 4152 | }); |
| 4153 | await act(loadStylesheets); |
| 4154 | assertLog(['load stylesheet: foo']); |
| 4155 | expect(getMeaningfulChildren(document)).toEqual( |
| 4156 | <html> |
| 4157 | <head> |
| 4158 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 4159 | <link rel="preload" as="style" href="foo" /> |
| 4160 | </head> |
| 4161 | <body> |
| 4162 | <div>hello</div> |
| 4163 | </body> |
| 4164 | </html>, |
| 4165 | ); |
| 4166 | }); |
| 4167 | |
| 4168 | it('will not flush a preload for a new preinitialized Stylesheet Resource if one was already flushed', async () => { |
| 4169 | function Component() { |
| 4170 | ReactDOM.preload('foo', {as: 'style'}); |
| 4171 | return ( |
| 4172 | <div> |
| 4173 | <Suspense fallback="loading..."> |
| 4174 | <BlockedOn value="blocked"> |
| 4175 | <Preinit /> |
| 4176 | hello |
| 4177 | </BlockedOn> |
| 4178 | </Suspense> |
| 4179 | </div> |
| 4180 | ); |
| 4181 | } |
| 4182 | |
| 4183 | function Preinit() { |
| 4184 | ReactDOM.preinit('foo', {as: 'style'}); |
| 4185 | } |
| 4186 | await act(() => { |
| 4187 | renderToPipeableStream( |
| 4188 | <html> |
| 4189 | <body> |
| 4190 | <Component /> |
| 4191 | </body> |
| 4192 | </html>, |
| 4193 | ).pipe(writable); |
| 4194 | }); |
| 4195 | |
| 4196 | expect(getMeaningfulChildren(document)).toEqual( |
| 4197 | <html> |
| 4198 | <head> |
| 4199 | <link rel="preload" as="style" href="foo" /> |
| 4200 | </head> |
| 4201 | <body> |
| 4202 | <div>loading...</div> |
| 4203 | </body> |
| 4204 | </html>, |
| 4205 | ); |
| 4206 | await act(() => { |
| 4207 | resolveText('blocked'); |
| 4208 | }); |
| 4209 | expect(getMeaningfulChildren(document)).toEqual( |
| 4210 | <html> |
| 4211 | <head> |
| 4212 | <link rel="preload" as="style" href="foo" /> |
| 4213 | </head> |
| 4214 | <body> |
| 4215 | <div>hello</div> |
| 4216 | </body> |
| 4217 | </html>, |
| 4218 | ); |
| 4219 | }); |
| 4220 | |
| 4221 | it('will not insert a preload if the underlying resource already exists in the Document', async () => { |
| 4222 | await act(() => { |
| 4223 | renderToPipeableStream( |
| 4224 | <html> |
| 4225 | <head> |
| 4226 | <link rel="stylesheet" href="foo" precedence="default" /> |
| 4227 | <script async={true} src="bar" /> |
| 4228 | <link rel="preload" href="baz" as="font" /> |
| 4229 | </head> |
| 4230 | <body> |
| 4231 | <div id="container" /> |
| 4232 | </body> |
| 4233 | </html>, |
| 4234 | ).pipe(writable); |
| 4235 | }); |
| 4236 | |
| 4237 | expect(getMeaningfulChildren(document)).toEqual( |
| 4238 | <html> |
| 4239 | <head> |
| 4240 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 4241 | <script async="" src="bar" /> |
| 4242 | <link rel="preload" href="baz" as="font" /> |
| 4243 | </head> |
| 4244 | <body> |
| 4245 | <div id="container" /> |
| 4246 | </body> |
| 4247 | </html>, |
| 4248 | ); |
| 4249 | |
| 4250 | container = document.getElementById('container'); |
| 4251 | |
| 4252 | function ClientApp() { |
| 4253 | ReactDOM.preload('foo', {as: 'style'}); |
| 4254 | ReactDOM.preload('bar', {as: 'script'}); |
| 4255 | ReactDOM.preload('baz', {as: 'font'}); |
| 4256 | return 'foo'; |
| 4257 | } |
| 4258 | |
| 4259 | const root = ReactDOMClient.createRoot(container); |
| 4260 | |
| 4261 | await clientAct(() => root.render(<ClientApp />)); |
| 4262 | expect(getMeaningfulChildren(document)).toEqual( |
| 4263 | <html> |
| 4264 | <head> |
| 4265 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 4266 | <script async="" src="bar" /> |
| 4267 | <link rel="preload" href="baz" as="font" /> |
| 4268 | </head> |
| 4269 | <body> |
| 4270 | <div id="container">foo</div> |
| 4271 | </body> |
| 4272 | </html>, |
| 4273 | ); |
| 4274 | }); |
| 4275 | |
| 4276 | it('uses imageSrcSet and imageSizes when keying image preloads', async () => { |
| 4277 | function App({isClient}) { |
| 4278 | // Will key off href in absense of imageSrcSet |
| 4279 | ReactDOM.preload('foo', {as: 'image'}); |
| 4280 | ReactDOM.preload('foo', {as: 'image'}); |
| 4281 | |
| 4282 | // Will key off imageSrcSet + imageSizes |
| 4283 | ReactDOM.preload('foo', {as: 'image', imageSrcSet: 'fooset'}); |
| 4284 | ReactDOM.preload('foo2', {as: 'image', imageSrcSet: 'fooset'}); |
| 4285 | |
| 4286 | // Will key off imageSrcSet + imageSizes |
| 4287 | ReactDOM.preload('foo', { |
| 4288 | as: 'image', |
| 4289 | imageSrcSet: 'fooset', |
| 4290 | imageSizes: 'foosizes', |
| 4291 | }); |
| 4292 | ReactDOM.preload('foo2', { |
| 4293 | as: 'image', |
| 4294 | imageSrcSet: 'fooset', |
| 4295 | imageSizes: 'foosizes', |
| 4296 | }); |
| 4297 | |
| 4298 | // Will key off href in absense of imageSrcSet, imageSizes is ignored. these should match the |
| 4299 | // first preloads not not emit a new preload tag |
| 4300 | ReactDOM.preload('foo', {as: 'image', imageSizes: 'foosizes'}); |
| 4301 | ReactDOM.preload('foo', {as: 'image', imageSizes: 'foosizes'}); |
| 4302 | |
| 4303 | // These preloads are for something that isn't an image |
| 4304 | // They should all key off the href |
| 4305 | ReactDOM.preload('bar', {as: 'somethingelse'}); |
| 4306 | ReactDOM.preload('bar', { |
| 4307 | as: 'somethingelse', |
| 4308 | imageSrcSet: 'makes no sense', |
| 4309 | }); |
| 4310 | ReactDOM.preload('bar', { |
| 4311 | as: 'somethingelse', |
| 4312 | imageSrcSet: 'makes no sense', |
| 4313 | imageSizes: 'makes no sense', |
| 4314 | }); |
| 4315 | |
| 4316 | if (isClient) { |
| 4317 | // Will key off href in absense of imageSrcSet |
| 4318 | ReactDOM.preload('client', {as: 'image'}); |
| 4319 | ReactDOM.preload('client', {as: 'image'}); |
| 4320 | |
| 4321 | // Will key off imageSrcSet + imageSizes |
| 4322 | ReactDOM.preload('client', {as: 'image', imageSrcSet: 'clientset'}); |
| 4323 | ReactDOM.preload('client2', {as: 'image', imageSrcSet: 'clientset'}); |
| 4324 | |
| 4325 | // Will key off imageSrcSet + imageSizes |
| 4326 | ReactDOM.preload('client', { |
| 4327 | as: 'image', |
| 4328 | imageSrcSet: 'clientset', |
| 4329 | imageSizes: 'clientsizes', |
| 4330 | }); |
| 4331 | ReactDOM.preload('client2', { |
| 4332 | as: 'image', |
| 4333 | imageSrcSet: 'clientset', |
| 4334 | imageSizes: 'clientsizes', |
| 4335 | }); |
| 4336 | |
| 4337 | // Will key off href in absense of imageSrcSet, imageSizes is ignored. these should match the |
| 4338 | // first preloads not not emit a new preload tag |
| 4339 | ReactDOM.preload('client', {as: 'image', imageSizes: 'clientsizes'}); |
| 4340 | ReactDOM.preload('client', {as: 'image', imageSizes: 'clientsizes'}); |
| 4341 | } |
| 4342 | |
| 4343 | return ( |
| 4344 | <html> |
| 4345 | <body>hello</body> |
| 4346 | </html> |
| 4347 | ); |
| 4348 | } |
| 4349 | |
| 4350 | await act(() => { |
| 4351 | renderToPipeableStream(<App />).pipe(writable); |
| 4352 | }); |
| 4353 | expect(getMeaningfulChildren(document)).toEqual( |
| 4354 | <html> |
| 4355 | <head> |
| 4356 | <link rel="preload" as="image" href="foo" /> |
| 4357 | <link rel="preload" as="image" imagesrcset="fooset" /> |
| 4358 | <link |
| 4359 | rel="preload" |
| 4360 | as="image" |
| 4361 | imagesrcset="fooset" |
| 4362 | imagesizes="foosizes" |
| 4363 | /> |
| 4364 | <link rel="preload" as="somethingelse" href="bar" /> |
| 4365 | </head> |
| 4366 | <body>hello</body> |
| 4367 | </html>, |
| 4368 | ); |
| 4369 | |
| 4370 | const root = ReactDOMClient.hydrateRoot(document, <App />); |
| 4371 | await waitForAll([]); |
| 4372 | expect(getMeaningfulChildren(document)).toEqual( |
| 4373 | <html> |
| 4374 | <head> |
| 4375 | <link rel="preload" as="image" href="foo" /> |
| 4376 | <link rel="preload" as="image" imagesrcset="fooset" /> |
| 4377 | <link |
| 4378 | rel="preload" |
| 4379 | as="image" |
| 4380 | imagesrcset="fooset" |
| 4381 | imagesizes="foosizes" |
| 4382 | /> |
| 4383 | <link rel="preload" as="somethingelse" href="bar" /> |
| 4384 | </head> |
| 4385 | <body>hello</body> |
| 4386 | </html>, |
| 4387 | ); |
| 4388 | |
| 4389 | root.render(<App isClient={true} />); |
| 4390 | await waitForAll([]); |
| 4391 | expect(getMeaningfulChildren(document)).toEqual( |
| 4392 | <html> |
| 4393 | <head> |
| 4394 | <link rel="preload" as="image" href="foo" /> |
| 4395 | <link rel="preload" as="image" imagesrcset="fooset" /> |
| 4396 | <link |
| 4397 | rel="preload" |
| 4398 | as="image" |
| 4399 | imagesrcset="fooset" |
| 4400 | imagesizes="foosizes" |
| 4401 | /> |
| 4402 | <link rel="preload" as="somethingelse" href="bar" /> |
| 4403 | <link rel="preload" as="image" href="client" /> |
| 4404 | <link rel="preload" as="image" imagesrcset="clientset" /> |
| 4405 | <link |
| 4406 | rel="preload" |
| 4407 | as="image" |
| 4408 | imagesrcset="clientset" |
| 4409 | imagesizes="clientsizes" |
| 4410 | /> |
| 4411 | </head> |
| 4412 | <body>hello</body> |
| 4413 | </html>, |
| 4414 | ); |
| 4415 | }); |
| 4416 | |
| 4417 | it('should handle referrerPolicy on image preload', async () => { |
| 4418 | function App({isClient}) { |
| 4419 | ReactDOM.preload('/server', { |
| 4420 | as: 'image', |
| 4421 | imageSrcSet: '/server', |
| 4422 | imageSizes: '100vw', |
| 4423 | referrerPolicy: 'no-referrer', |
| 4424 | }); |
| 4425 | |
| 4426 | if (isClient) { |
| 4427 | ReactDOM.preload('/client', { |
| 4428 | as: 'image', |
| 4429 | imageSrcSet: '/client', |
| 4430 | imageSizes: '100vw', |
| 4431 | referrerPolicy: 'no-referrer', |
| 4432 | }); |
| 4433 | } |
| 4434 | |
| 4435 | return ( |
| 4436 | <html> |
| 4437 | <body>hello</body> |
| 4438 | </html> |
| 4439 | ); |
| 4440 | } |
| 4441 | |
| 4442 | await act(() => { |
| 4443 | renderToPipeableStream(<App />).pipe(writable); |
| 4444 | }); |
| 4445 | expect(getMeaningfulChildren(document)).toEqual( |
| 4446 | <html> |
| 4447 | <head> |
| 4448 | <link |
| 4449 | rel="preload" |
| 4450 | as="image" |
| 4451 | imagesrcset="/server" |
| 4452 | imagesizes="100vw" |
| 4453 | referrerpolicy="no-referrer" |
| 4454 | /> |
| 4455 | </head> |
| 4456 | <body>hello</body> |
| 4457 | </html>, |
| 4458 | ); |
| 4459 | |
| 4460 | const root = ReactDOMClient.hydrateRoot(document, <App />); |
| 4461 | await waitForAll([]); |
| 4462 | expect(getMeaningfulChildren(document)).toEqual( |
| 4463 | <html> |
| 4464 | <head> |
| 4465 | <link |
| 4466 | rel="preload" |
| 4467 | as="image" |
| 4468 | imagesrcset="/server" |
| 4469 | imagesizes="100vw" |
| 4470 | referrerpolicy="no-referrer" |
| 4471 | /> |
| 4472 | </head> |
| 4473 | <body>hello</body> |
| 4474 | </html>, |
| 4475 | ); |
| 4476 | |
| 4477 | root.render(<App isClient={true} />); |
| 4478 | await waitForAll([]); |
| 4479 | expect(getMeaningfulChildren(document)).toEqual( |
| 4480 | <html> |
| 4481 | <head> |
| 4482 | <link |
| 4483 | rel="preload" |
| 4484 | as="image" |
| 4485 | imagesrcset="/server" |
| 4486 | imagesizes="100vw" |
| 4487 | referrerpolicy="no-referrer" |
| 4488 | /> |
| 4489 | <link |
| 4490 | rel="preload" |
| 4491 | as="image" |
| 4492 | imagesrcset="/client" |
| 4493 | imagesizes="100vw" |
| 4494 | referrerpolicy="no-referrer" |
| 4495 | /> |
| 4496 | </head> |
| 4497 | <body>hello</body> |
| 4498 | </html>, |
| 4499 | ); |
| 4500 | }); |
| 4501 | |
| 4502 | it('can emit preloads for non-lazy images that are rendered', async () => { |
| 4503 | function App() { |
| 4504 | ReactDOM.preload('script', {as: 'script'}); |
| 4505 | ReactDOM.preload('a', {as: 'image'}); |
| 4506 | ReactDOM.preload('b', {as: 'image'}); |
| 4507 | return ( |
| 4508 | <html> |
| 4509 | <body> |
| 4510 | <img src="a" /> |
| 4511 | <img src="b" loading="lazy" /> |
| 4512 | <img src="b2" loading="lazy" /> |
| 4513 | <img src="c" srcSet="srcsetc" /> |
| 4514 | <img src="d" srcSet="srcsetd" sizes="sizesd" /> |
| 4515 | <img src="d" srcSet="srcsetd" sizes="sizesd2" /> |
| 4516 | </body> |
| 4517 | </html> |
| 4518 | ); |
| 4519 | } |
| 4520 | |
| 4521 | await act(() => { |
| 4522 | renderToPipeableStream(<App />).pipe(writable); |
| 4523 | }); |
| 4524 | |
| 4525 | // non-lazy images are first, then arbitrary preloads like for the script and lazy images |
| 4526 | expect(getMeaningfulChildren(document)).toEqual( |
| 4527 | <html> |
| 4528 | <head> |
| 4529 | <link rel="preload" href="a" as="image" /> |
| 4530 | <link rel="preload" as="image" imagesrcset="srcsetc" /> |
| 4531 | <link |
| 4532 | rel="preload" |
| 4533 | as="image" |
| 4534 | imagesrcset="srcsetd" |
| 4535 | imagesizes="sizesd" |
| 4536 | /> |
| 4537 | <link |
| 4538 | rel="preload" |
| 4539 | as="image" |
| 4540 | imagesrcset="srcsetd" |
| 4541 | imagesizes="sizesd2" |
| 4542 | /> |
| 4543 | <link rel="preload" href="script" as="script" /> |
| 4544 | <link rel="preload" href="b" as="image" /> |
| 4545 | </head> |
| 4546 | <body> |
| 4547 | <img src="a" /> |
| 4548 | <img src="b" loading="lazy" /> |
| 4549 | <img src="b2" loading="lazy" /> |
| 4550 | <img src="c" srcset="srcsetc" /> |
| 4551 | <img src="d" srcset="srcsetd" sizes="sizesd" /> |
| 4552 | <img src="d" srcset="srcsetd" sizes="sizesd2" /> |
| 4553 | </body> |
| 4554 | </html>, |
| 4555 | ); |
| 4556 | }); |
| 4557 | |
| 4558 | it('Does not preload lazy images', async () => { |
| 4559 | function App() { |
| 4560 | ReactDOM.preload('a', {as: 'image'}); |
| 4561 | return ( |
| 4562 | <html> |
| 4563 | <body> |
| 4564 | <img src="a" fetchPriority="low" /> |
| 4565 | <img src="b" fetchPriority="low" /> |
| 4566 | </body> |
| 4567 | </html> |
| 4568 | ); |
| 4569 | } |
| 4570 | await act(() => { |
| 4571 | renderToPipeableStream(<App />).pipe(writable); |
| 4572 | }); |
| 4573 | |
| 4574 | expect(getMeaningfulChildren(document)).toEqual( |
| 4575 | <html> |
| 4576 | <head> |
| 4577 | <link rel="preload" as="image" href="a" /> |
| 4578 | </head> |
| 4579 | <body> |
| 4580 | <img src="a" fetchpriority="low" /> |
| 4581 | <img src="b" fetchpriority="low" /> |
| 4582 | </body> |
| 4583 | </html>, |
| 4584 | ); |
| 4585 | }); |
| 4586 | |
| 4587 | it('preloads up to 10 suspensey images as high priority when fetchPriority is not specified', async () => { |
| 4588 | function App() { |
| 4589 | ReactDOM.preload('1', {as: 'image', fetchPriority: 'high'}); |
| 4590 | ReactDOM.preload('auto', {as: 'image'}); |
| 4591 | ReactDOM.preload('low', {as: 'image', fetchPriority: 'low'}); |
| 4592 | ReactDOM.preload('9', {as: 'image', fetchPriority: 'high'}); |
| 4593 | ReactDOM.preload('10', {as: 'image', fetchPriority: 'high'}); |
| 4594 | return ( |
| 4595 | <html> |
| 4596 | <body> |
| 4597 | {/* skipping 1 */} |
| 4598 | <img src="2" /> |
| 4599 | <img src="3" fetchPriority="auto" /> |
| 4600 | <img src="4" fetchPriority="high" /> |
| 4601 | <img src="5" /> |
| 4602 | <img src="5low" fetchPriority="low" /> |
| 4603 | <img src="6" /> |
| 4604 | <img src="7" /> |
| 4605 | <img src="8" /> |
| 4606 | <img src="9" /> |
| 4607 | {/* skipping 10 */} |
| 4608 | <img src="11" /> |
| 4609 | <img src="12" fetchPriority="high" /> |
| 4610 | </body> |
| 4611 | </html> |
| 4612 | ); |
| 4613 | } |
| 4614 | await act(() => { |
| 4615 | renderToPipeableStream(<App />).pipe(writable); |
| 4616 | }); |
| 4617 | |
| 4618 | expect(getMeaningfulChildren(document)).toEqual( |
| 4619 | <html> |
| 4620 | <head> |
| 4621 | {/* First we see the preloads calls that made it to the high priority image queue */} |
| 4622 | <link rel="preload" as="image" href="1" fetchpriority="high" /> |
| 4623 | <link rel="preload" as="image" href="9" fetchpriority="high" /> |
| 4624 | <link rel="preload" as="image" href="10" fetchpriority="high" /> |
| 4625 | {/* Next we see up to 7 more images qualify for high priority image queue */} |
| 4626 | <link rel="preload" as="image" href="2" /> |
| 4627 | <link rel="preload" as="image" href="3" fetchpriority="auto" /> |
| 4628 | <link rel="preload" as="image" href="4" fetchpriority="high" /> |
| 4629 | <link rel="preload" as="image" href="5" /> |
| 4630 | <link rel="preload" as="image" href="6" /> |
| 4631 | <link rel="preload" as="image" href="7" /> |
| 4632 | <link rel="preload" as="image" href="8" /> |
| 4633 | {/* Next we see images that are explicitly high priority and thus make it to the high priority image queue */} |
| 4634 | <link rel="preload" as="image" href="12" fetchpriority="high" /> |
| 4635 | {/* Next we see the remaining preloads that did not make it to the high priority image queue */} |
| 4636 | <link rel="preload" as="image" href="auto" /> |
| 4637 | <link rel="preload" as="image" href="low" fetchpriority="low" /> |
| 4638 | <link rel="preload" as="image" href="11" /> |
| 4639 | </head> |
| 4640 | <body> |
| 4641 | {/* skipping 1 */} |
| 4642 | <img src="2" /> |
| 4643 | <img src="3" fetchpriority="auto" /> |
| 4644 | <img src="4" fetchpriority="high" /> |
| 4645 | <img src="5" /> |
| 4646 | <img src="5low" fetchpriority="low" /> |
| 4647 | <img src="6" /> |
| 4648 | <img src="7" /> |
| 4649 | <img src="8" /> |
| 4650 | <img src="9" /> |
| 4651 | {/* skipping 10 */} |
| 4652 | <img src="11" /> |
| 4653 | <img src="12" fetchpriority="high" /> |
| 4654 | </body> |
| 4655 | </html>, |
| 4656 | ); |
| 4657 | }); |
| 4658 | |
| 4659 | it('can promote images to high priority when at least one instance specifies a high fetchPriority', async () => { |
| 4660 | function App() { |
| 4661 | // If a ends up in a higher priority queue than b it will flush first |
| 4662 | ReactDOM.preload('a', {as: 'image'}); |
| 4663 | ReactDOM.preload('b', {as: 'image'}); |
| 4664 | return ( |
| 4665 | <html> |
| 4666 | <body> |
| 4667 | <link rel="stylesheet" href="foo" precedence="default" /> |
| 4668 | <img src="1" /> |
| 4669 | <img src="2" /> |
| 4670 | <img src="3" /> |
| 4671 | <img src="4" /> |
| 4672 | <img src="5" /> |
| 4673 | <img src="6" /> |
| 4674 | <img src="7" /> |
| 4675 | <img src="8" /> |
| 4676 | <img src="9" /> |
| 4677 | <img src="10" /> |
| 4678 | <img src="11" /> |
| 4679 | <img src="12" /> |
| 4680 | <img src="a" fetchPriority="low" /> |
| 4681 | <img src="a" /> |
| 4682 | <img src="a" fetchPriority="high" /> |
| 4683 | <img src="a" /> |
| 4684 | <img src="a" /> |
| 4685 | </body> |
| 4686 | </html> |
| 4687 | ); |
| 4688 | } |
| 4689 | |
| 4690 | await act(() => { |
| 4691 | renderToPipeableStream(<App />).pipe(writable); |
| 4692 | }); |
| 4693 | expect(getMeaningfulChildren(document)).toEqual( |
| 4694 | <html> |
| 4695 | <head> |
| 4696 | {/* The First 10 high priority images were just the first 10 rendered images */} |
| 4697 | <link rel="preload" as="image" href="1" /> |
| 4698 | <link rel="preload" as="image" href="2" /> |
| 4699 | <link rel="preload" as="image" href="3" /> |
| 4700 | <link rel="preload" as="image" href="4" /> |
| 4701 | <link rel="preload" as="image" href="5" /> |
| 4702 | <link rel="preload" as="image" href="6" /> |
| 4703 | <link rel="preload" as="image" href="7" /> |
| 4704 | <link rel="preload" as="image" href="8" /> |
| 4705 | <link rel="preload" as="image" href="9" /> |
| 4706 | <link rel="preload" as="image" href="10" /> |
| 4707 | {/* The "a" image was rendered a few times but since at least one of those was with |
| 4708 | fetchPriorty="high" it ends up in the high priority queue */} |
| 4709 | <link rel="preload" as="image" href="a" /> |
| 4710 | {/* Stylesheets come in between high priority images and regular preloads */} |
| 4711 | <link rel="stylesheet" href="foo" data-precedence="default" /> |
| 4712 | {/* The remainig images that preloaded at regular priority */} |
| 4713 | <link rel="preload" as="image" href="b" /> |
| 4714 | <link rel="preload" as="image" href="11" /> |
| 4715 | <link rel="preload" as="image" href="12" /> |
| 4716 | </head> |
| 4717 | <body> |
| 4718 | <img src="1" /> |
| 4719 | <img src="2" /> |
| 4720 | <img src="3" /> |
| 4721 | <img src="4" /> |
| 4722 | <img src="5" /> |
| 4723 | <img src="6" /> |
| 4724 | <img src="7" /> |
| 4725 | <img src="8" /> |
| 4726 | <img src="9" /> |
| 4727 | <img src="10" /> |
| 4728 | <img src="11" /> |
| 4729 | <img src="12" /> |
| 4730 | <img src="a" fetchpriority="low" /> |
| 4731 | <img src="a" /> |
| 4732 | <img src="a" fetchpriority="high" /> |
| 4733 | <img src="a" /> |
| 4734 | <img src="a" /> |
| 4735 | </body> |
| 4736 | </html>, |
| 4737 | ); |
| 4738 | }); |
| 4739 | |
| 4740 | it('preloads from rendered images properly use srcSet and sizes', async () => { |
| 4741 | function App() { |
| 4742 | ReactDOM.preload('1', {as: 'image', imageSrcSet: 'ss1'}); |
| 4743 | ReactDOM.preload('2', { |
| 4744 | as: 'image', |
| 4745 | imageSrcSet: 'ss2', |
| 4746 | imageSizes: 's2', |
| 4747 | }); |
| 4748 | return ( |
| 4749 | <html> |
| 4750 | <body> |
| 4751 | <img src="1" srcSet="ss1" /> |
| 4752 | <img src="2" srcSet="ss2" sizes="s2" /> |
| 4753 | <img src="3" srcSet="ss3" /> |
| 4754 | <img src="4" srcSet="ss4" sizes="s4" /> |
| 4755 | </body> |
| 4756 | </html> |
| 4757 | ); |
| 4758 | } |
| 4759 | await act(() => { |
| 4760 | renderToPipeableStream(<App />).pipe(writable); |
| 4761 | }); |
| 4762 | |
| 4763 | expect(getMeaningfulChildren(document)).toEqual( |
| 4764 | <html> |
| 4765 | <head> |
| 4766 | <link rel="preload" as="image" imagesrcset="ss1" /> |
| 4767 | <link rel="preload" as="image" imagesrcset="ss2" imagesizes="s2" /> |
| 4768 | <link rel="preload" as="image" imagesrcset="ss3" /> |
| 4769 | <link rel="preload" as="image" imagesrcset="ss4" imagesizes="s4" /> |
| 4770 | </head> |
| 4771 | <body> |
| 4772 | <img src="1" srcset="ss1" /> |
| 4773 | <img src="2" srcset="ss2" sizes="s2" /> |
| 4774 | <img src="3" srcset="ss3" /> |
| 4775 | <img src="4" srcset="ss4" sizes="s4" /> |
| 4776 | </body> |
| 4777 | </html>, |
| 4778 | ); |
| 4779 | }); |
| 4780 | |
| 4781 | it('should not preload images that have a data URIs for src or srcSet', async () => { |
| 4782 | function App() { |
| 4783 | return ( |
| 4784 | <html> |
| 4785 | <body> |
| 4786 | <img src="data:1" /> |
| 4787 | <img src="data:2" srcSet="ss2" /> |
| 4788 | <img srcSet="data:3a, data:3b 2x" /> |
| 4789 | <img src="4" srcSet="data:4a, data4b 2x" /> |
| 4790 | </body> |
| 4791 | </html> |
| 4792 | ); |
| 4793 | } |
| 4794 | await act(() => { |
| 4795 | renderToPipeableStream(<App />).pipe(writable); |
| 4796 | }); |
| 4797 | |
| 4798 | expect(getMeaningfulChildren(document)).toEqual( |
| 4799 | <html> |
| 4800 | <head /> |
| 4801 | <body> |
| 4802 | <img src="data:1" /> |
| 4803 | <img src="data:2" srcset="ss2" /> |
| 4804 | <img srcset="data:3a, data:3b 2x" /> |
| 4805 | <img src="4" srcset="data:4a, data4b 2x" /> |
| 4806 | </body> |
| 4807 | </html>, |
| 4808 | ); |
| 4809 | }); |
| 4810 | |
| 4811 | // https://github.com/vercel/next.js/discussions/54799 |
| 4812 | it('omits preloads when an <img> is inside a <picture>', async () => { |
| 4813 | await act(() => { |
| 4814 | renderToPipeableStream( |
| 4815 | <html> |
| 4816 | <body> |
| 4817 | <picture> |
| 4818 | <img src="foo" /> |
| 4819 | </picture> |
| 4820 | <picture> |
| 4821 | <source type="image/webp" srcSet="webpsrc" /> |
| 4822 | <img src="jpg fallback" /> |
| 4823 | </picture> |
| 4824 | </body> |
| 4825 | </html>, |
| 4826 | ).pipe(writable); |
| 4827 | }); |
| 4828 | |
| 4829 | expect(getMeaningfulChildren(document)).toEqual( |
| 4830 | <html> |
| 4831 | <head /> |
| 4832 | <body> |
| 4833 | <picture> |
| 4834 | <img src="foo" /> |
| 4835 | </picture> |
| 4836 | <picture> |
| 4837 | <source type="image/webp" srcset="webpsrc" /> |
| 4838 | <img src="jpg fallback" /> |
| 4839 | </picture> |
| 4840 | </body> |
| 4841 | </html>, |
| 4842 | ); |
| 4843 | }); |
| 4844 | |
| 4845 | // Fixes: https://github.com/facebook/react/issues/27910 |
| 4846 | it('omits preloads for images inside noscript tags', async () => { |
| 4847 | function App() { |
| 4848 | return ( |
| 4849 | <html> |
| 4850 | <body> |
| 4851 | <img src="foo" /> |
| 4852 | <noscript> |
| 4853 | <img src="bar" /> |
| 4854 | </noscript> |
| 4855 | </body> |
| 4856 | </html> |
| 4857 | ); |
| 4858 | } |
| 4859 | |
| 4860 | await act(() => { |
| 4861 | renderToPipeableStream(<App />).pipe(writable); |
| 4862 | }); |
| 4863 | |
| 4864 | expect(getMeaningfulChildren(document)).toEqual( |
| 4865 | <html> |
| 4866 | <head> |
| 4867 | <link rel="preload" href="foo" as="image" /> |
| 4868 | </head> |
| 4869 | <body> |
| 4870 | <img src="foo" /> |
| 4871 | <noscript><img src="bar"></noscript> |
| 4872 | </body> |
| 4873 | </html>, |
| 4874 | ); |
| 4875 | }); |
| 4876 | |
| 4877 | it('should handle media on image preload', async () => { |
| 4878 | function App({isClient}) { |
| 4879 | ReactDOM.preload('/server', { |
| 4880 | as: 'image', |
| 4881 | imageSrcSet: '/server', |
| 4882 | imageSizes: '100vw', |
| 4883 | media: 'print and (min-width: 768px)', |
| 4884 | }); |
| 4885 | |
| 4886 | if (isClient) { |
| 4887 | ReactDOM.preload('/client', { |
| 4888 | as: 'image', |
| 4889 | imageSrcSet: '/client', |
| 4890 | imageSizes: '100vw', |
| 4891 | media: 'screen and (max-width: 480px)', |
| 4892 | }); |
| 4893 | } |
| 4894 | |
| 4895 | return ( |
| 4896 | <html> |
| 4897 | <body>hello</body> |
| 4898 | </html> |
| 4899 | ); |
| 4900 | } |
| 4901 | |
| 4902 | await act(() => { |
| 4903 | renderToPipeableStream(<App />).pipe(writable); |
| 4904 | }); |
| 4905 | expect(getMeaningfulChildren(document)).toEqual( |
| 4906 | <html> |
| 4907 | <head> |
| 4908 | <link |
| 4909 | rel="preload" |
| 4910 | as="image" |
| 4911 | imagesrcset="/server" |
| 4912 | imagesizes="100vw" |
| 4913 | media="print and (min-width: 768px)" |
| 4914 | /> |
| 4915 | </head> |
| 4916 | <body>hello</body> |
| 4917 | </html>, |
| 4918 | ); |
| 4919 | |
| 4920 | const root = ReactDOMClient.hydrateRoot(document, <App />); |
| 4921 | await waitForAll([]); |
| 4922 | expect(getMeaningfulChildren(document)).toEqual( |
| 4923 | <html> |
| 4924 | <head> |
| 4925 | <link |
| 4926 | rel="preload" |
| 4927 | as="image" |
| 4928 | imagesrcset="/server" |
| 4929 | imagesizes="100vw" |
| 4930 | media="print and (min-width: 768px)" |
| 4931 | /> |
| 4932 | </head> |
| 4933 | <body>hello</body> |
| 4934 | </html>, |
| 4935 | ); |
| 4936 | |
| 4937 | root.render(<App isClient={true} />); |
| 4938 | await waitForAll([]); |
| 4939 | expect(getMeaningfulChildren(document)).toEqual( |
| 4940 | <html> |
| 4941 | <head> |
| 4942 | <link |
| 4943 | rel="preload" |
| 4944 | as="image" |
| 4945 | imagesrcset="/server" |
| 4946 | imagesizes="100vw" |
| 4947 | media="print and (min-width: 768px)" |
| 4948 | /> |
| 4949 | <link |
| 4950 | rel="preload" |
| 4951 | as="image" |
| 4952 | imagesrcset="/client" |
| 4953 | imagesizes="100vw" |
| 4954 | media="screen and (max-width: 480px)" |
| 4955 | /> |
| 4956 | </head> |
| 4957 | <body>hello</body> |
| 4958 | </html>, |
| 4959 | ); |
| 4960 | }); |
| 4961 | |
| 4962 | it('should warn if you preload a stylesheet and then render a style tag with the same href', async () => { |
| 4963 | const style = 'body { color: red; }'; |
| 4964 | function App() { |
| 4965 | ReactDOM.preload('foo', {as: 'style'}); |
| 4966 | return ( |
| 4967 | <html> |
| 4968 | <body> |
| 4969 | hello |
| 4970 | <style precedence="default" href="foo"> |
| 4971 | {style} |
| 4972 | </style> |
| 4973 | </body> |
| 4974 | </html> |
| 4975 | ); |
| 4976 | } |
| 4977 | |
| 4978 | await act(() => { |
| 4979 | renderToPipeableStream(<App />).pipe(writable); |
| 4980 | }); |
| 4981 | assertConsoleErrorDev([ |
| 4982 | 'React encountered a hoistable style tag for the same href as a preload: "foo". ' + |
| 4983 | 'When using a style tag to inline styles you should not also preload it as a stylsheet.\n' + |
| 4984 | ' in style (at **)\n' + |
| 4985 | ' in App (at **)', |
| 4986 | ]); |
| 4987 | |
| 4988 | expect(getMeaningfulChildren(document)).toEqual( |
| 4989 | <html> |
| 4990 | <head> |
| 4991 | <style data-precedence="default" data-href="foo"> |
| 4992 | {style} |
| 4993 | </style> |
| 4994 | <link rel="preload" as="style" href="foo" /> |
| 4995 | </head> |
| 4996 | <body>hello</body> |
| 4997 | </html>, |
| 4998 | ); |
| 4999 | }); |
| 5000 |
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