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Prompt user for unsaved changes when leaving webpage

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鱼传尺愫
鱼传尺愫 2020-12-20 05:54

What options do I have preventing the user from just closing the browser or navigating to another site? (of course I can\'t prevent him pulling the plug on the computer, etc

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  • 栀梦
    2020-12-20 06:23

    You should use the onunload event.

    <script>
function onExitHandler() {
  // called when user about to leave the page
}
</script>
<body onunload="onExitHandler()">
...
</body>

    You can see an example here: http://www.w3schools.com/jsref/jsref_onunload.asp

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  • 醉酒成梦
    2020-12-20 06:31

    You could use the JS beforeunload event in order to achieve this.

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