Re-sync workers web platform tests from upstream.
Created attachment 378436 [details] Patch
Created attachment 378467 [details] Patch
Comment on attachment 378467 [details] Patch Clearing flags on attachment: 378467 Committed r249719: <https://trac.webkit.org/changeset/249719>
All reviewed patches have been landed. Closing bug.
<rdar://problem/55225766>