The users can access to Internet when cancel auth pront.
I have a pfsense CE 2.5.2 with the last version of squid and squidguard...
I have 3 Groups ACLs (basic, medium, full) and each of them are linked to one AD Security Group.
I have not a transparent proxy, when the users open a browers and they are asked for auth, then cancelled the dialog box and get free browsing (without blockers). I kwon that is for the Common ACL (actually is all in allow), but I need do this beacause I have some users that no auth is not requeried and need to match with the common ACL.
Is any workaround to block the user that cancel the auth dialog box?