I have a website with a classic search form. When i go to results page and
press the "back" button the message appears (The page has expired). As you
know, pressing F5 resends the form and everything works again.
The method I use is POST and don't want to use GET. In [url]www.easyjet.com[/url] for
example this doesn't happens and when you press "back", it returns to the
form and don't loose the search cryteria.
Any idea? I've tried sending some headers about cache, but it doesn't work.
this is what I tried:
$caducidad = 30 * 60; // ...