[Webkit-unassigned] [Bug 80229] New: We need toHTMLUnknwonElement and isUnknown() for sanity check.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=80229

           Summary: We need toHTMLUnknwonElement and isUnknown() for
                    sanity check.
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: HTML DOM
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: morrita at google.com
            Blocks: 79935


Sometimes WebCore cast elements to HTMLUnknownElement. But it can cause a trouble which is hard to diagnose.
We can add some mechanism to detect such wrong usages.

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