Page expiry - PHP/CakePHP and Internet Explorer

Hi guys,

I have a search box on my site, whereby the user enters a term and results are displayed. When they click one of the results (a product) they get taken to the product page. When they then hit the back button, they get shown a “Warning: this page has expired” message.

I am using CakePHP on Apache, and have been advised that I need to change session.cache_control? I have tried chaning it to private in htaccess, but it does not seem to have helped.

Any help much appreciated.

Cheers, D