Created attachment 398735 [details]
Patch

Comment on attachment 398735 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=398735&action=review

> Source/WebCore/accessibility/isolatedtree/AXIsolatedObject.cpp:-481
> -    if (!isMainThread()) {

Can we leave this !iSMainThread but check which isolated tree mode we're in? and better yet add another assert?

> Source/WebCore/accessibility/isolatedtree/AXIsolatedObject.cpp:860
> +    if (auto tree = this->tree())

same here

> Source/WebCore/accessibility/isolatedtree/AXIsolatedTree.cpp:290
> +    ASSERT(m_changeLogLock.isLocked());

do we need to add the same thing for the focused node?

Created attachment 398742 [details]
Patch

Committed r261300: <https://trac.webkit.org/changeset/261300>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 398742 [details].

<rdar://problem/62980582>