I just installed a WordPress site and successfully set it up in a "network" / multi-site configuration based on sub-domains. I also set up domain mapping.
As far as I can tell, this all works fine, except when a user logs out.
The base site is blogs.example.com. I have a domain mapping called e.g. coolblog.example.com, which works fine. However, after a user logs out of the site, she is redirected to the login page at coolblog.blogs.example.com, rather than at coolblog.example.com. This is a real problem as we have a complicated corporate setup and want to avoid having to add all those sub-sub-domains to our Apache reverse proxy. Furthermore, I don't want to communicate the "internal" WordPress subdomains to users.
Has anyone encountered this before? Any help would be much appreciated.