RESOLVED FIXED 283578
AX: REGRESSION(286869@main): AXPropertyName::IsExpanded becomes stale for details and summary elements, causing accessibility/mac/details-summary.html to fail in ITM 
https://bugs.webkit.org/show_bug.cgi?id=283578
Summary AX: REGRESSION(286869@main): AXPropertyName::IsExpanded becomes stale for det...
Tyler Wilcock
Reported 2024-11-22 10:38:53 PST
Prior to https://commits.webkit.org/286869@main, we used to get away with not updating this property because every time the details were expanded, we would throw away the entire details, summary, and other descendant objects and create new ones (because the DOM implementation destroyed and recreated the DOM elements each time). After https://commits.webkit.org/286869@main, the DOM implementation no longer destroys and recreates brand new DOM elements, instead managing the visibility via CSS content-visibility. This a good change, since we now do significantly less work, but need to make sure this property stays up-to-date.
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Radar WebKit Bug Importer
Comment 1 2024-11-22 10:39:01 PST
<rdar://problem/140428627>
Tyler Wilcock
Comment 2 2024-11-22 10:41:19 PST
Pull request: https://github.com/WebKit/WebKit/pull/37036
EWS
Comment 3 2024-11-23 07:25:52 PST
Committed 287009@main (9da9cefb7d6d): <https://commits.webkit.org/287009@main> Reviewed commits have been landed. Closing PR #37036 and removing active labels.
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