how to clear cahe in a page

Dear,
I have a page in a session and my audit team has an interceptor tool ,
Scenario is->before sending any request to a page the tool captures the Session id and keeps it stored and the user when logs out from the application and request that page again he got a 302 page error what the audit team is doing now they are using that stored session id in the interceptor and change the status to 201 ok and are able to navigate to the page though the session has been logout.
What could be the issue,
(1)Can it be cache issue if yes,how can i clear it to prevent the user to navigate to that page
(2)or if that might be any other issue any help is really appreciated,
Thanks