Check if a popup window is closed

by

Here’s what I suggest.

in the popup you should have:

<script type="text/javascript">

function reloadOpener() {
  if (top.opener && !top.opener.closed) {
    try {
      opener.location.reload(1); 
    }
    catch(e) {
    }
    window.close();
  }
}
window.onunload=function() {
  reloadOpener();
}
</script>

<form action="..." target="hiddenFrame">
</form>
<iframe style="width:10px; height:10px; display:none" name="hiddenFrame" src="about:blank"></iframe>

then in the server process you can return

<script>
   top.close();
</script>

Old suggestions

There is no variable called popup in the popup window.
try

var popup = window.open('...','...');
if (popup) {
  popup.onclose = function () { opener.location.reload(); }
}

or with a test:

popup.onclose = function () { if (opener && !opener.closed) opener.location.reload(); }

PS: onclose is not supported by all browsers

PPS: location.reload takes a boolean, add true if you want to not load from cache
as in opener.location.reload(1);

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