[Webkit-unassigned] [Bug 112473] New: Removing value of password input causes browser to hang on pages with large numbers of DOM nodes

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=112473

           Summary: Removing value of password input causes browser to
                    hang on pages with large numbers of DOM nodes
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
               URL: http://jsbin.com/imuqed/3/quiet
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Forms
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: chris.bugreport at gmail.com


On pages with large numbers of DOM nodes, entering a value into a password field and then removing the value cause the browser to hang. The unresponsiveness occurs when the last character of the password input is deleted. The example page at http://jsbin.com/imuqed/3/quiet has 10,000 div elements each containing a text node and then a password input. The length of time of the delay is proportional to the number of DOM nodes. If the number of DOM nodes is halved then the delay is approximately halved.

This does not occur with text input types.

This bug has been verified in Chrome Beta, Chrome Canary, Safari, and Webkit nightly. It occurs on Windows and MacOS.

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