aria-roledescription.html and aria-switch-checked.html must be made async to pass in isolated tree mode as they dynamically change page content using JS. ellipsis-text.html can be made isolated-tree-friendly by selecting elements with accessibleElementById instead of: document.getElementById("text-ellipsis").focus(); var textContainer = accessibilityController.focusedElement;
<rdar://problem/85994654>
Created attachment 445789 [details] Patch
Need to upload a new patch. GTK has a different default role description, so my new version of aria-roledescription.html fails there.
Created attachment 445856 [details] Patch
Created attachment 445903 [details] Patch
Committed r286530 (244862@main): <https://commits.webkit.org/244862@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 445903 [details].