ThreadableLoaderOptions contains an AtomicString, so even an isolated copy cannot be sent to another thread.
Created attachment 253453 [details] proposed fix
Comment on attachment 253453 [details] proposed fix View in context: https://bugs.webkit.org/attachment.cgi?id=253453&action=review > Source/WebCore/loader/ThreadableLoader.h:71 > + String initiator; // This cannot be an AtomicString, as isolatedCopy() wouldn't create an object that's safe for passing to another thread. I think this comment would be better as a ChangeLog comment - no real point in listing what types a member variable cannot be.
Comment on attachment 253453 [details] proposed fix I'm sure someone would change this back into an AtomicString within a week from now, and there is no better way to prevent that than a header comment, unfortunately.
Comment on attachment 253453 [details] proposed fix Clearing flags on attachment: 253453 Committed r184657: <http://trac.webkit.org/changeset/184657>
All reviewed patches have been landed. Closing bug.