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Posted by Andy Pieters on 04/11/05 19:48
Hi all
I noticed some sites are able to remove POST data 100% of the time. Even if
the user presses the back button there is no more POST data pressent.
I would like to achieve the same thing and currently I use a location header
to transfer the user to the same page.
Like
check post
do action
header('Location: $thispage');
die();
But then when the user presses the back button they can still retransmit the
action.
I tried playing with the MUST-REVALIDATE, pragma-nocache header and stuff but
it doesn't seem to work. Also I notice that on some sites, when I press the
back button, there is a white page that sais "Your session has expired".
It should be noticed that I do not use sessions.
It should be like POST-once, after that there should be no more remnants of
it.
With kind regards
Andy
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