mirror of
https://github.com/ManchildProductions/UXP-Fixed.git
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Matt A. Tobin
11 lines
172 B
HTML
11 lines
172 B
HTML
<html>
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<script>
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window.onbeforeunload = function(event) {
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event.returnValue = 'Test beforeunload handler';
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}
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</script>
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<body>
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Test page
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</body>
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</html>
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