Access to AXIsolatedTree:m_readerThreadNodeMap should happen only on the secondary AX thread.
Created attachment 402687 [details] Patch
Committed r263572: <https://trac.webkit.org/changeset/263572> All reviewed patches have been landed. Closing bug and clearing flags on attachment 402687 [details].
<rdar://problem/64817078>
Comment on attachment 402687 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=402687&action=review > Source/WebCore/accessibility/isolatedtree/AXIsolatedTree.h:109 > + void updateChildrenIDs(AXID axID, Vector<AXID>&& childrenIDs); WebKit coding style discourages including names like "axID" that just repeat the name of the type, when declaring a function. This was a pre-existing thing that we just moved, but something to avoid in future. Seems like a minor bug in the style checking script that it didn’t detect this — I know it has code that attempts to do it, but maybe the upper/lowercase confuses it.