ServiceWorkerContainer::startScriptFetchForJob() fails to isolate copy the registrationKey before passing it to the main thread.
<rdar://problem/37796881>
Created attachment 334462 [details] Patch
Created attachment 334463 [details] Patch
Comment on attachment 334463 [details] Patch Clearing flags on attachment: 334463 Committed r228931: <https://trac.webkit.org/changeset/228931>
All reviewed patches have been landed. Closing bug.