[Webkit-unassigned] [Bug 112418] [GTK][WK2] Load get stuck in webkit_web_view_go_back()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=112418





--- Comment #3 from Manuel Rego Casasnovas <rego at igalia.com>  2013-03-15 07:08:20 PST ---
(In reply to comment #2)
> I've just found where the load gets stuck, the problem is in WebKitWebView::webkitWebViewLoadChanged() because of priv->waitingForMainResource is set to TRUE. Then COMMITTED signal is not emitted.

I've been debugging it and I've more info:
* In WebKitWebView the reason why priv->waitingForMainResource is TRUE is because of priv->mainResource is NULL (as it was set in WebKitWebView::webkitWebViewLoadChanged() when WEBKIT_LOAD_STARTED was received).
* priv->mainResource is NULL because of WebKitWebView::webkitWebViewResourceLoadStarted() is never called. Which means that DidInitiateLoadForResource is never received.

The process when we click the back button is different because of it's loading a page from cache, that means that it's using DidInitiateLoadForResource is never received and it doesn't seem expected to be received.

In FrameLoader::loadProvisionalItemFromCachedPage() you can see that the first one calls startLoadingMainResource() which ends up sending the message DidInitiateLoadForResource. However FrameLoader::continueLoadAfterWillSubmitForm() doesn't do it.

We should find a way to know if we're loading a page or not from cache in order to in order to avoid mark the WebView as waitingForMainResource in webkitWebViewLoadChanged().

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