[Webkit-unassigned] [Bug 49250] New: Browser sometimes hangs when closing tab with DailyMotion HTML5 video player

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=49250

           Summary: Browser sometimes hangs when closing tab with
                    DailyMotion HTML5 video player
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh Intel
               URL: http://www.dailymotion.com/html5
        OS/Version: Mac OS X 10.6
            Status: UNCONFIRMED
          Severity: Major
          Priority: P2
         Component: New Bugs
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: joshua.root.backup at gmail.com


Created an attachment (id=73365)
 --> (https://bugs.webkit.org/attachment.cgi?id=73365&action=review)
Sample during the hang

Software versions: OS X 10.6.4, Safari 5.0.2, WebKit nightly r71484 (problem has affected nightlies for at least the last few weeks, and also affects normal Safari 5.0.2)

Steps to reproduce:
1. Launch browser and open a new tab.
2. Go to DailyMotion's HTML5 Player Beta page and click the "Activate HTML5 Player Beta on Dailymotion" button.
3. Load a playlist, for example http://www.dailymotion.com/playlist/x1b4se_BabyLightblue_73_animals-mamals#videoId=xar2qz
4. Wait for the video to start playing, and then close the tab.

The entire browser will now be unresponsive (spinning beachball of death).

Attaching a sample.

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