[Webkit-unassigned] [Bug 87448] New: Presence of video tag causes DumpRenderTree to exit before calling onload handler

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=87448

           Summary: Presence of video tag causes DumpRenderTree to exit
                    before calling onload handler
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Media Elements
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: kbr at google.com
                CC: eric.carlson at apple.com, fischman at chromium.org


Created an attachment (id=143946)
 --> (https://bugs.webkit.org/attachment.cgi?id=143946&action=review)
Test case; unzip in LayoutTests/fast/canvas/webgl

It appears that if a <video> tag is present, DumpRenderTree will exit before calling the body's onload handler, unless layoutTestController.waitUntilDone() has been called. If waitUntilDone() is called within the body's onload handler, the test will exit early.

Reproduced with Chromium port's DumpRenderTree implementation. Not sure whether it happens with other ports.

Commenting out the video tag causes the onload handler to run 100% reliably.

Calling waitUntilDone() in script executed during page load causes the test to run 100% reliably.

See the attached test case; unzip in LayoutTests/fast/canvas/webgl.

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