[Webkit-unassigned] [Bug 51357] ASSERTION: !m_reachedTerminalState in ResourceLoader::didCancel()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=51357


Alexey Proskuryakov <ap at webkit.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |beidson at apple.com,
                   |                            |japhet at chromium.org,
                   |                            |koivisto at iki.fi,
                   |                            |mihaip at chromium.org




--- Comment #1 from Alexey Proskuryakov <ap at webkit.org>  2010-12-20 16:34:18 PST ---
The problem is that main resource can finish loading during execution of its own MainResourceLoader::didCancel():

    frameLoader()->receivedMainResourceError(error, true);
    ResourceLoader::didCancel(error);

Here, receivedMainResourceError() indirectly starts printing, and load finishes while a print sheet is displayed. Naturally, ResourceLoader::didCancel() isn't happy about the load being half-canceled and half-finished.

One may think (as I did) that adding PageGroupLoadDeferrer in Chrome::print() would solve this, but DocumentLoader doesn't have its MainResourceLoader pointer at this point any more, so deferring the page doesn't defer its main resource.

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