I think the code you used as written below causes the problem. This code is used when you want nothing to be cached in a JSP page  response. Try the following solutions and I hope it works:

- Remove the code that you mentioned below and test your application again.

- It may be your IE’s setting that prevents anything to be cached on client side, check it.

- If none of above worked, use a JavaScript trick on client side to go back  and refresh when you click  on BACK button.