[Webkit-unassigned] [Bug 81853] DOM 3 Event, mousedown and mouseup default actions

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=81853





--- Comment #3 from Alexey Proskuryakov <ap at webkit.org>  2012-04-07 00:23:34 PST ---
This seems questionable for performance reasons - much of mouse event handling happens in UI process, which can not consult JavaScript event handlers without a potentially huge performance penalty. Scrolling in particular needs to be responsive.

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