As many people, I tried to look for a solution to customize the onbeforeunload pop up window but I came up with no solution So I was wondering, is it possible to hide this onbeforeunload (or make it not appear) and make a custom alert/pop up doing the same and customized?
Onbeforeunload is a pain in th a** so I can of modify it (just the message) or know when it going to be fired (like clicking a button that goes to other page) and with javascript, disable it ( = null) and make a custom div that was hidden appear to look like a pop up.