Single sign-on with preAuthenticationFilter in 6.2
I have developed a preAuthentication filter which is supposed to authenticate a user based on a supplied email (and some other info). Based on debug information the filter method getAuthenticatedUsername returns the right value, and debugging the http session shows that the information has been transferred there. However, the user is directed to the login page and not into the service.
What is the problem, why is the user not directed to the same page as when logging in with username and password ?