Hi!
I am trying to prevent a browser going back to a logon screen and any user
being able to refresh (and the browser re-submits the post data).
I understand that the following should work. It doesn't.
header("Cache-Control: no-cache, must-revalidate");
header("Pragma: no-cache");
header("Expires: Mon,26 Jul 1997 05:00:00 GMT");
Any ideas. And yes I am inserting the code before any output.
Thanx
Nel.
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