Avoid "Member not found" error in IE (#7411)
Explanation, discussion, and similar change as #7343 Addresses #7320
Greg Palmer committed
Aug 19, 2016 at 13:43 UTC
a8741963dc661432caa906c295a0477691bad614
1 file changed
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src/renderers/shared/stack/event/SyntheticEvent.js
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@@ -121,7 +121,7 @@ Object.assign(SyntheticEvent.prototype, {
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if (event.preventDefault) {
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event.preventDefault();
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- } else {
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+ } else if (typeof event.returnValue !== 'unknown') { // eslint-disable-line valid-typeof
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event.returnValue = false;
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}
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this.isDefaultPrevented = emptyFunction.thatReturnsTrue;