Sending beacons when Fetch KeepAlive feature is disabled crashes the WebProcess:
com.apple.WebKit.Networking: (WebKit) [com.apple.WebKit:IPC] Received an invalid message 'NetworkConnectionToWebProcess::LoadPing' from WebContent process 259, requesting for it to be terminated.
Created attachment 396991 [details]
Comment on attachment 396991 [details]
Committed r260382: <https://trac.webkit.org/changeset/260382>
All reviewed patches have been landed. Closing bug and clearing flags on attachment 396991 [details].