Logged in as an admin. I go to Settings -> Users, and I create a user with login 'readonly' and password readonly. I log out, and verify that I can log in as this user, everything works fine.
I log back in as an admin, I go to Environment Settings and under Automatic Login I put readonly and readonly for username and password. Save the page, log out, go to my /mydbr URL, and I get this error:
Automatic login: Check the username/password
I go directly to the login.php page, log in with readonly/readonly and it works fine.
So why doesn't automatic login work?
I'm running 4.0.0 (build 2277) on Ubuntu 12.04.4 with php 5.3.10-1ubuntu3.11