javascript - Use JQuery or onbeforeunload for IE and FF -


i'm working in flex4 application, using javascript, in "index.template.html" document. i'm having issue being able use onbeforeunload firefox. application works in ie, exact same 1 doesn't sit ff. (see below)

<script type="text/javascript"> window.onbeforeunload=before; window.onunload=after;  function before(evt) {    var flex=document.$(application)||window.$(application);    flex.unloadmethod(); //custom method log out user }  function after(evt) {  } </script>

from i've found, ff doesn't seem register onbeforeunload events, found popular thing use instead binding jquery. so, deleted above code , replaced below code, doesn't display pop-up when user tries leaving page in both ie , ff. seems using jquery seems doing exact same thing, don't know what's going on.

<script type="text/javascript"> $(window).bind("beforeunload",function(event){    return "this should create pop-up"; }); </script>

eventually nice call "flex.unloadmethod" in first bit of code, time being i'm trying pop-up work know i'm on right track. insight appreciated.

try:

<script>     $(window).on('beforeunload', function(){         return "this should create pop-up";     }); </script>

example: http://jsfiddle.net/aezta/3/


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