In version 7.0, when you hide an OpenERP server behind a reverse proxy, for accessing it you type an URL like this:
https://openerp-server.com
With new functionality added in revision 3837, there is an initial redirection, adding a parameter ?db= with the name of the database. If you aren't behind a reverse proxy, there's no problem with this redirection, but in the other case, redirection happens to (following the example):
http://openerp-server.com/?db=database
What makes that it doesn't work if you have forbidden traffic on unsecured ports (or you don't have any redirections on port 80) or use unsecured connections in any other case (what is not the desired behaviour).
Forcing in the URL typed the db parameter, it doesn't happen, and this only happens in the initial redirection, but not when you toggle the database in the upper right corner.
Conflicting code is located on addons/web/controllers/main.py, on line 572 (well, the function that is called in this line indeed).
I second this, we have the same issue