Bug 93237 – [Qt] When deleting a webview that has an open javascript alert will cause a crash

• Component: New Bugs
• Status: RESOLVED INVALID

[Qt] When deleting a webview that has an open javascript alert will cause a crash.  To workaround this then delay the deletion of the webview until after the alert is closed.  The attached example reproduces the problem and uncommenting the code in MainApp::deleteWebView() will give a workaround.

Created attachment 156630 [details]
Example to reproduce the issue

[Matt Horan]

We're seeing a similar issue in capybara-webkit.  See the discussion here: http://git.io/jKcw_g.

Basically, if deleteLater causes a WebPage to be deleted while evaluateJavaScript is still running, the resultant message is delivered by WebCore/JSC internals to an invalid object.  This results in a segfault.

Although the errors in capybara-webkit require redesign to work properly, given that loadFinished does not signify that javaScriptWindowObjectCleared has been fired, it is still concerning that using deleteLater still causes a segfault, even though it is supposed to wait for all signals to be delivered.

[Jocelyn Turcotte]

=== Bulk closing of Qt bugs ===

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