I have integrated moodle authentication with CAS 3.5.2 (A.D. authentication).
I have sporadic problems in the authentication.
When I start session in moodle CAS ask for credentials (no problems, no errors in catalina). I logout from moodle (no problem, redirect to logout cas page) and then close tab. But, the problem is when I start a new session, CAS ask for authentication again and the second time the authentication is ok, without errors in catalina.
I checked that moodle logout don't remove cookie.