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Editorial Team
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Asked: 2026-05-17T17:27:54+00:00

Is it possible to use JavaScript to handle the event of refreshing page? What

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Is it possible to use JavaScript to handle the event of refreshing page?
What I want is get notice if user do one of these behaviours:

  • refresh page by pressing F5
  • close tab or browser
  • enter a new url then press enter on
    browser

to display a warning message?

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1 Answer

  1. Editorial Team

    You don’t want the refresh, you want the onbeforeunload event.

    http://msdn.microsoft.com/en-us/library/ms536907(VS.85).aspx

    Sample code from article

    <HTML>
<head>
<script>
function closeIt()
{
  return "Any string value here forces a dialog box to \n" + 
         "appear before closing the window.";
}
window.onbeforeunload = closeIt;
</script>
</head>
<body>
  <a href="http://www.microsoft.com">Click here to navigate to 
      www.microsoft.com</a>
</body>
</html>
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