[Webkit-unassigned] [Bug 197349] WKWebView browser back (history back) ，a white screen occurs

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=197349

--- Comment #1 from Simon Fraser (smfr) <simon.fraser at apple.com> ---
Please file this at bugreport.apple.com, with a test app that we can run to reproduce the problem.

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