This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
webkitmouseforcewillbegin is a proprietary, WebKit-specific event which is fired before the
mousedown event. Its main use is that it can be
Event.preventDefault()ed in order to prevent the system from performing its default action in response to this event. It is part of the
- Not part of any specification. Apple has a description at the Mac Developer Library.
- Default Action
Not part of any specification. Apple has a description at the Mac Developer Library.