Setting header for cache control and expiry won't work if refreshed

[Vivek K Jain]

I have set this in a servlet that renders my jsp :

response.setHeader("Cache-Control", "no-cache, no-store, must-revalidate"); // HTTP 1.1.
response.setHeader("Pragma", "no-cache"); // HTTP 1.0.
response.setDateHeader("Expires", 0);

so after logout when i hit the back button it displays firefox page of "DOCUMENT EXPIRATION".. and afterwards if i refresh or hit try again it returs me the jsp which is not desirable.
this problem is limited to those page whose action is a post i suppose..

Tell me how to prevent this thing..