tree 767374aa57ed0dafb144f9bf180932182d94b3b5
parent 9da745b8ecae122964b96d74284e7d9dd7523dac
author wenson_hsieh@apple.com <wenson_hsieh@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1563216629 +0000
committer wenson_hsieh@apple.com <wenson_hsieh@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1563216629 +0000

REGRESSION: Chase app crashes immediately after authentication
https://bugs.webkit.org/show_bug.cgi?id=199798
<rdar://problem/53106179>

Reviewed by Alex Christensen.

After r247411, we sometimes try to consult `_page` from WKWebView, before WKWebView's `_page` has been set. This
happens under a check for -[WKWebView _isEditable], from within -[WKContentView setupInteraction], which happens
if the host app is not linked on the iOS 12 SDK or earlier. To mitigate this, simply add a null check in
-_isEditable.

There's currently no great way to test this, since we don't have a mechanism for simulating linked-on checks.

* UIProcess/API/Cocoa/WKWebView.mm:
(-[WKWebView _isEditable]):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@247436 268f45cc-cd09-0410-ab3c-d52691b4dbfc