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Selector: Only attach the unload handler in IE & Edge Legacy #5282

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Merged
mgol merged 1 commit into from
Jul 10, 2023
Merged

Selector: Only attach the unload handler in IE & Edge Legacy #5282

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17 changes: 11 additions & 6 deletions src/selector.js
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Original file line number Diff line number Diff line change
Expand Up @@ -523,12 +523,17 @@ function setDocument( node ) {
documentElement.msMatchesSelector;

// Support: IE 9 - 11+, Edge 12 - 18+
// Accessing iframe documents after unload throws "permission denied" errors (see trac-13936)
// Support: IE 11+, Edge 17 - 18+
// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
// two documents; shallow comparisons work.
// eslint-disable-next-line eqeqeq
if ( preferredDoc != document &&
// Accessing iframe documents after unload throws "permission denied" errors
// (see trac-13936).
// Limit the fix to IE & Edge Legacy; despite Edge 15+ implementing `matches`,
// all IE 9+ and Edge Legacy versions implement `msMatchesSelector` as well.
if ( documentElement.msMatchesSelector &&

// Support: IE 11+, Edge 17 - 18+
// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
// two documents; shallow comparisons work.
// eslint-disable-next-line eqeqeq
preferredDoc != document &&
( subWindow = document.defaultView ) && subWindow.top !== subWindow ) {

// Support: IE 9 - 11+, Edge 12 - 18+
Expand Down