JSP LOGOUT Problem

[dpSharma]

Hii,
I am working on jsp n now i want to code a logout page.
Problem : Using back button i can browse all the pages to which i have just logout. I know that Using
response.setHeader("Cache-Control","no-cache");
response.setHeader("Cache-Control","no-store");
we can rectify the problem i'm stating but again when use the above two lines code i get a error "session is invalid".
So plz. help me.