为什么即使登录记录存储在会话中，在清除缓存后系统仍会注销？

Question

When we login to the system, we are storing some records to the session and on logout the session is cleared out.

Now, when a user is logged into the system, how comes that the page is automatically logged out if user clears the cache from the browser?

We stored the login data to the session and at the time of clearing cache, we are clearing only the cookies and not the session, so basically are cookies affecting the logged in user data?.

Answer 1

The cookie stored in the browser contains the session id and this is what is used to identify the session. If you delete the cookie, how will your server know which session to retrieve? You can't delete the cookie if you want to retain the session

Answer 2

It is because your session id is stored into your cookies.

If you won't delete it and only clear other cookies,then your system won't logout automatically.