[Webkit-unassigned] [Bug 42940] New: popstate events are lost when network connection is in progress

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=42940

           Summary: popstate events are lost when network connection is in
                    progress
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
               URL: http://www.bcherry.net/playground/pushstate
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: History
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: bcherry at gmail.com


User history navigation (back/forward buttons) while there is network traffic does not always fire a popstate event.  These events are completely lost, and can get an application into the wrong state, where the user navigated through their history, but the app was never notified.  Seen in Chrome 5 and 6 and Safari 5 on OS X 10.6.  Mozilla's Firefox 4 implementation of popstate does not show this behavior.

Reproduced here by downloading an image for 1s in the popstate handler, which prevents further popstates from firing while the image downloads: http://www.bcherry.net/playground/pushstate

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