This is used by Cache API which is exposed to workers.
Created attachment 331107 [details] Patch
Comment on attachment 331107 [details] Patch Why don't we hit the isMainThread() assertion in blobRegistry() if this is an issue? At the very least, this looks testable.
Created attachment 331209 [details] Adding test
Comment on attachment 331209 [details] Adding test Clearing flags on attachment: 331209 Committed r226906: <https://trac.webkit.org/changeset/226906>
All reviewed patches have been landed. Closing bug.
<rdar://problem/36479493>