Firefox Bug Test Case

Opera & Firefox do not fire a blur event when an input element or its DOM tree is removed. Safari and Chrome do.

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<!DOCTYPE html>
<html>
    <head>
        <title></title>
        <meta http-equiv='content-type' content='text/html; charset=utf-8' />
    </head>
    <body>
        <input type='text' id='foo' />
        <h1 id='result'></h1>
        <script>
            var foo = document.getElementById('foo');
            var result = document.getElementById('result');
            result.innerHTML = 'fail';
            foo.focus();
            foo.onblur = function() {
                result.innerHTML = 'succeed';
            };
            foo.parentNode.removeChild(foo);
        </script>
    </body>
</html>
    