pressing back button after logout shows loggedin contents

Hi,

I am developing a website using struts2.
The website has login and logout functionalities.
After i logout i clear and invalidate my sessions, but if i go back to the previous page (with the browser back button), i am still able to see the previously logged in pages.

For example: I have a 'userName' session field in each page. On login the userName is set. On logout as the session is invalidated, the userName is set to null. But when i go to the previous page, i still see the userName set to the logged in value.

How do i prevent this and cause the page to be sent from the server. Thank you in advance

Look here...

I tried that Ankit. But the problem still persists

Did you use those headers on every page where you don't want the browser to cache your page??

S i tried inserting both

but it didnot work.

i find
in the headers

i found

here....

this works. thank you ankit.

friends i tried all these but it didnt help..

it still caching the data...i.e the name if the user and allowing him to come back to the home page after logout by pressing back button...

help guys...help...

Are you actually using that code?? Its not valid HTML. You have a head tag after body tag, I can't see the starting html tag (I'm sure its there but you forgot to paste it here). If you check the link here, you only need to put 3 lines in the head tag of your html page. Nothing else is needed. The 3 lines are as follows