As suggested in https://bugs.webkit.org/show_bug.cgi?id=196128#c17.
Created attachment 366625 [details] Patch
Comment on attachment 366625 [details] Patch r=me
Created attachment 366633 [details] Patch for landing
Comment on attachment 366633 [details] Patch for landing Clearing flags on attachment: 366633 Committed r243824: <https://trac.webkit.org/changeset/243824>
All reviewed patches have been landed. Closing bug.
<rdar://problem/49571234>
Re-opened since this is blocked by bug 196611
r243807 and r243824 got rolled out for timeouts and I am going to re-land r243807, so I will merge this change to the re-landed patch.