True "cross browser" beforeunload
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10-11-2012, 09:52 PM
Join Date: Sep 2005
Location: Sydney, Australia
Thanked 496 Times in 488 Posts
You are not going to find one because that is not a part of the standards and so browsers do not have to implement it.
It is easy enough to disable it in any browser anyway since most uses for it are simply annoying and serve no useful purpose.
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