[Webkit-unassigned] [Bug 103422] Optional second argument to TrackEvent constructor is not respected

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=103422





--- Comment #4 from Antoine Quint <graouts at apple.com>  2012-11-28 02:39:58 PST ---
The IDL (per http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#trackevent) is as follows:

[Constructor(DOMString type, optional TrackEventInit eventInitDict)]
interface TrackEvent : Event {
  readonly attribute object? track;
};

dictionary TrackEventInit : EventInit {
  object? track;
};

… so it looks like the optional TrackEventInit parameter allows any object to be the value of the "track" property. So it looks like providing just a vanilla JS object as the track by calling the following should work:

    var event = new TrackEvent('foo', {track: {}});

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