[WebAccessibilityObjectWrapper doAXAttributedStringForTextMarkerRange] must run on the main thread.
Created attachment 391195 [details] Patch
Comment on attachment 391195 [details] Patch Clearing flags on attachment: 391195 Committed r257052: <https://trac.webkit.org/changeset/257052>
All reviewed patches have been landed. Closing bug.
<rdar://problem/59627282>