MessagePort should be WeakPtrFactoryInitialization::Eager
https://build.webkit.org/results/Apple%20Mojave%20Debug%20WK2%20(Tests)/r248996%20(4231)/imported/w3c/web-platform-tests/service-workers/service-worker/fetch-cors-xhr.https-crash-log.txt
Created attachment 377121 [details] Patch
Comment on attachment 377121 [details] Patch Clearing flags on attachment: 377121 Committed r249094: <https://trac.webkit.org/changeset/249094>
All reviewed patches have been landed. Closing bug.
<rdar://problem/54699649>