www links do not detect user session

If you are logged into the site using https://floss-pa.net and you visit another link with www that will require user session, the system does not detect that you have been already logged.

Steps to reproduce:

1. Go to https://floss-pa.net/ and hit "Ingresar", log as user.
2. Go to https://www.floss-pa.net/ you will notice that there is no user logged.