Catch browser close

Question

I need to know if its possible to catch a user closing the browser window. I have tried using <body onbeforeunload="run_closeScripts()"> which works fine, but this is triggered on every postback! So its not much use if the user hits the refresh button or goes to another page.

Is there a reliable way to detect if its a full browser close rather than a postback?

<body onbeforeunload="run_closeScripts()">

<script type="text/javascript">

    function run_closeScripts() {

        //check if the browser is closing and not a postback
        window.alert("Your checkout will be removed!");
        window.location.replace("Exit.aspx");
    }

No in real it isn't.There might be some events could be catch but not all — Kamran Shahid, Dec 14 '12 at 10:02
The tags of your question indicate the platform you are using, so they don't need to be repeated in your title. — spender, Dec 14 '12 at 10:24

score 0 · Answer 1 · answered Dec 14 '12 at 10:06

0

The only way to do this would be to use JavaScript and you can google for that, however, it is worth noting you CANNOT rely on the JavaScript running. Don't put stuff in you require to happen because you can't rely on it.

answered Dec 14 '12 at 10:06

webnoob

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Catch browser close

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