problem with Browser's back button

In my application after logOff, if i click back button of browser the previous pages are displayed even though the session is expired,the user can see the pages but he can't do any action because first i check for session, if session is not there i redirect the user to login page. but i dont want the pages to be displayed when the user logsoff and then clicks back button of browser(firefox).

You could instruct the browser not to cache the pages. You need to set the appropriate headers in the servlet. Out of the top of my head it is something like "pragma:No cache".

"Moin",
Welcome to JavaRanch!

We're pleased to have you here with us in the FSP forum, but there
are a few rules that need to be followed, and one is that proper names are
required. Please take a look at the
JavaRanch Naming Policy and
adjust your display name to match it.

In particular, your display name must be a first and a last name separated by a space character, and must not be obviously fictitious.

You can change it here

Welcome to JavaRanch!

"Moin.ieg",

Thanks for changing your display name, but it is still not acceptable. Please read the following quote from Ben's message again:

In particular, your display name must be a first and a last name separated by a space character, and must not be obviously fictitious.

thanks
bear
JavaRanch Sheriff

I have tried but it is not working, any other solution please if possible

"Moin.ieg", you have previously been warned on multiple occasions regarding adjusting your display name to meet JavaRanch standards. This is not optional, and this is your final warning. Adjust your display name to comply with the required standards prior to your next post.

Failure to comply will result in the removal of your account.

bear
JavaRanch Sheriff