[Webkit-unassigned] [Bug 124139] New: Mouse wheel events dropped from non-scrolling iframe on first load

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=124139

           Summary: Mouse wheel events dropped from non-scrolling iframe
                    on first load
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
               URL: http://bl.ocks.org/mbostock/3680999
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Frames
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: jason.davies at gmail.com


1. Load http://bl.ocks.org/mbostock/3680999
2. Try scrolling the mouse wheel to zoom the example.
3. The whole page will scroll, and the example will not zoom.

Refreshing the page seems to fix the problem and the example in the iframe zooms as intended (while preventing the default behaviour of scrolling the page).

I suspect this is related to the use of <iframe scrolling="no">.  Without this, it seems to work on first load.

Reproduced in WebKit nightly: Version 7.0 (9537.71, 538+) - first noticed in Safari Version 7.0 (9537.71).

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