postMessage in service workers is hopping from main thread to service worker thread to dispatch events. Ditto for fetch event. Some other events though are hopping from main thread to service worker thread, then posting a task to dispatch events. This may create ordering problems
Created attachment 367046 [details] Patch
Created attachment 367126 [details] Patch
Comment on attachment 367126 [details] Patch Clearing flags on attachment: 367126 Committed r244160: <https://trac.webkit.org/changeset/244160>
All reviewed patches have been landed. Closing bug.
<rdar://problem/49794126>
*** Bug 190828 has been marked as a duplicate of this bug. ***