We are no longer able to prevent a tab from closing via the beforeunload prompt since r253224.
<rdar://problem/58537467>
Created attachment 387941 [details] Patch
Comment on attachment 387941 [details] Patch r=me are the iOS-wk2 EWS crashes related?
(In reply to Geoffrey Garen from comment #3) > Comment on attachment 387941 [details] > Patch > > r=me > > are the iOS-wk2 EWS crashes related? Doesn't look like it, the bubbles are green now.
Comment on attachment 387941 [details] Patch Clearing flags on attachment: 387941 Committed r254711: <https://trac.webkit.org/changeset/254711>
All reviewed patches have been landed. Closing bug.