In 7.3.x and prior, if you go to
http://ubbcentral.com, it wouldn't actually log you in properly because the forum is set to run on
https://www.ubbcentral.com, even though you can reach it either way. The reason being, that cookies are set on whatever the FULL_URL (
https://www.ubbcentral.com) is set to.
In 7.4. There are 2 ways that it will handle this.
#1 (default handler): If you go to
http://ubbcentral.com it will redirect you to
https://www.ubbcentral.com. #2 (optional handler): If you go to
http://ubbcentral.com it changes the FULL_URL for your session to
http://ubbcentral.com.