[Webkit-unassigned] [Bug 138443] Crash in NSURLConnectionInternal, messaging released WebView

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=138443

--- Comment #18 from Alexey Proskuryakov <ap at webkit.org> ---
There are two known places where we retain the WebView during dealloc:

1. When posting a notification:

    [[NSNotificationCenter defaultCenter] postNotificationName:WebViewWillCloseNotification object:self];

2. When doing arbitrary work in a JavaScript unload event handler.

It seems challenging to avoid that without changing WebKit API. One approach I can think of is to implicitly call -close when the view is removed from view hierarchy instead of when it's being deallocated. That seems risky - what if the application is just going to re-insert the view elsewhere?

In MiniBrowser case, we only destroy the view when closing the window, so setting view.shouldCloseWithWindow to TRUE would help, but that's not a general solution.

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