see bug 193835
Created attachment 360152 [details] Patch
Created attachment 360160 [details] Patch
Created attachment 360164 [details] Patch
Comment on attachment 360164 [details] Patch Clearing flags on attachment: 360164 Committed r240519: <https://trac.webkit.org/changeset/240519>
All reviewed patches have been landed. Closing bug.
<rdar://problem/47564855>