title: Identity isAuthenticated cookie
body: <p>I have a question regarding ASP.NET Identity provider.
  I have made a system where you can execute CRUD operations on users and roles, though I have encountered a problem. If I was to delete a user which is already authenticated (signed in) he will still be able to perform actions on the site as he still keeps the authentication and authorization cookie on his local machine. When the user logs out he is no longer able to access the site.</p>
  
  <p><strong>My question:</strong>
  Is there a way to make it so when a page is requested it checks whether the user exists in the database or not? Another way could be to not store 'role' cookies and check (via the database) if the user has the required role to access the page or not. I'm not sure how to configure this. Any help is appreciated.</p>