Confirm form resubmission on browser back button

Question

Hi...
 
In my web Appliction i had a page products.aspx, By clicking on product it should be redirected to ProductEdit page by passing the id of product as url and it is working fine. but after this when clicked on browser back button. it is redirecting to error page confirm page resubmission. i am using google chrome as my browser.
and in Internet Explorer it is webpage Expired.
 

how can i rectify this...?
 
Thanks in advance..