DocumentThreadableLoader should ensure service worker is not reused if redirection comes from the network. This is handled for same origin loads but not cross origin ones.
Created attachment 332300 [details] Patch
<rdar://problem/36878876>
Comment on attachment 332300 [details] Patch Clearing flags on attachment: 332300 Committed r227626: <https://trac.webkit.org/changeset/227626>
All reviewed patches have been landed. Closing bug.