reverseproxy: Reset Content-Length to prevent FastCGI from hanging (#5435)

Fixes: https://github.com/caddyserver/caddy/issues/5420

Trea Hauet committed Mar 16, 2023 at 11:42 UTC 2182270a2cb2861f5358bb41b81caee49bb7d0dd

1 file changed +2 -1

modules/caddyhttp/reverseproxy/reverseproxy.go

+2 -1

@@ -646,7 +646,8 @@ func (h Handler) prepareRequest(req *http.Request, repl *caddy.Replacer) (*http.

646 // feature if absolutely required, if read timeouts are

647 // set, and if body size is limited

648 if h.RequestBuffers != 0 && req.Body != nil {

649 - req.Body, _ = h.bufferedBody(req.Body, h.RequestBuffers)

649 + req.Body, req.ContentLength = h.bufferedBody(req.Body, h.RequestBuffers)

650 + req.Header.Set("Content-Length", strconv.FormatInt(req.ContentLength, 10))

651 }

652

653 if req.ContentLength == 0 {