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JavaScript
<script type="text/javascript">
            window.onbeforeunload = function() {
                return "Dude, are you sure you want to leave? Think of the kittens!";
            }
        </script>

how can i remove this onbeforeunload event by click an button ?
Posted

1 solution

setting

OR
HTML
window.onbeforeunload="";


i guess.
 
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