Bug Tracker

Ticket #6027: bug.html
File bug.html, 1.5 KB (added by menno, February 04, 2010 02:03PM UTC)

testcase

<!DOCTYPE HTML>
<html>
<head>
    <title>onbeforeunload bug</title>
            
    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.1/jquery.min.js"></script>
    <script type="text/javascript">
    jQuery(document).ready(function() {
        var messages = [];

        function log( message ) {
            messages.push(message);
            $('#log').html(messages.join('\n'));
        }
        
        $('#clickme').click(function() {
            log('clickme clicked');
        });
        
        window.onbeforeunload = function() {
            return 'really?';
        }
    });
    </script>
    
</head>
<body>
    <h1>Chrome <code>onbeforeunload</code> bug</h1>
    <h2>Steps to reproduce</h2>
    <ol>
        <li>Click the button a couple of times, notice the log being filled.</li>
        <li>Reload the page or try to close the window or tab.</li>
        <li>Choose to "Stay on this page".</li>
        <li>Click the button again, <strong>notice the log is no longer being filled.</strong></li>
    </ol>
    

    <p>
        <button id="clickme">Click me</button>
    </p>
    
    <pre id="log"></pre>
    
    <p>The bug is fixed (as far as I can tell) if the internal jQuery function <code>now()</code> is modified like so:</p>
    <pre>
// original: 
function now() {
    return (new Date).getTime();
}
    
// modified: 
function now() {
    return (new Date).valueOf();
}
</pre>

</body>
</html>

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