Protect ServiceWorker::postMessage from a null execState
<rdar://problem/57392221>
Created attachment 385974 [details] Patch
Created attachment 385976 [details] Patch
Comment on attachment 385976 [details] Patch Clearing flags on attachment: 385976 Committed r253710: <https://trac.webkit.org/changeset/253710>
All reviewed patches have been landed. Closing bug.
Comment on attachment 385976 [details] Patch Looks like this already landed, so clearing r? flag.