User-restricted pages display in navigation. For example, you have a restricted section is your intranet/Internet. User A is denied all access rights from the page P1 and user B is allowed read and write access rights to page P1.
You have a navigation component:
Do one of the following:
This behavior is expected. In this case, the first request that user B made, cached the page. Because the navigation component is part of the page, it is delivered directly from cache without recalculating for the second user.