Not doing so will make next initialize requests be appended to the queue and never called.
Created attachment 334484 [details] Patch
This complements https://bugs.webkit.org/show_bug.cgi?id=183062. Tested locally by hammering the WPT service worker tests, I no longer see Cache Storage related time outs.
<rdar://problem/37803485>
Comment on attachment 334484 [details] Patch Clearing flags on attachment: 334484 Committed r229045: <https://trac.webkit.org/changeset/229045>
All reviewed patches have been landed. Closing bug.