[Webkit-unassigned] [Bug 65013] New: instanceof HTMLSourceElement Fails

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=65013

           Summary: instanceof HTMLSourceElement Fails
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: HTML DOM
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: eclipsechasers2 at yahoo.com


Created an attachment (id=101699)
 --> (https://bugs.webkit.org/attachment.cgi?id=101699&action=review)
HTML source which demonstrates problem

For audio/video tag fallback, W3C recommends an onerror which, among other things, tests child nodes of the element to see if they are instanceof HTMLElementSource. This test works (on windows 7) in Firefox, Opera, and IE9; it fails in Safari and Chrome (Uncaught ReferenceError: HTMLSourceElement is not defined). HTML to demonstrate this problem is attached.

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