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window.onbeforeunload / window.onunload 在 chrome 中无法检测浏览器关闭事件。需要一些帮助！

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1 回答 1

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检查这个 http://help.dottoro.com/ljhtbtum.php

示例 http://help.dottoro.com/external/examples/ljhtbtum/onbeforeunload_1.htm

代码

<head>
    <script type="text/javascript">
        function OnBeforeUnLoad () {
            return "All data that you have entered will be lost!";
        }
    </script>
</head>
<body onbeforeunload="return OnBeforeUnLoad ()">
    <b>Close this window or press F5 to reload the page.</b>
    <br /><br />
    <form>
        User name: <input type="text" name="username" />
        <br />
        City: <input type="text" name="city" />
    </form>
</body>
于 2013-02-18T10:46:26.580 回答