SWServer::claim should check for the service worker to be active.
<rdar://problem/45441129>
Created attachment 390723 [details] Patch
Ping review
Comment on attachment 390723 [details] Patch Clearing flags on attachment: 390723 Committed r256900: <https://trac.webkit.org/changeset/256900>
All reviewed patches have been landed. Closing bug.