Laravel 5注销无法正常工作

Though this has been a repeated question, all available solutions have not worked for me.

The issue is that in my app, I am redirecting user to /auth/logout to logout. This in turn logs out a user and redirects to /auth/login as it should. But clicking any navigation links on home page or refreshing the page redirects and logs in the user.

• This is not a browser caching issue, because in that case only the page(content) would have been cached. In my case I can use the entire session.(all CRUD operations possible).
• If after logout, I login as another user, the session of the previous user persists i.e. the logged in user is the previous user.
• I have set the domain in session.php as 'xyz.com` because I am using the same session across subdomains.
• I have a remember_token() column in users table. The value of this changes on login and logout.
• Refreshing on /auth/login several times will redirect to / with session and sometimes won't. Pretty confusing.

The problem seems to resolved for now if I redirect to xyz.com/auth/logout instead of sub.xyz.com/auth/logout.

Strange behaviour. No explanation though.