Comment 1 for bug 698337

This looks like an a bug in the configuration of the apache2 openid mod. I saw this on staging a few weeks ago where apache was not getting not authenticating anyone to see the html files.

This may relate to the fact that Launchpad now uses Ubuntu's SSO, so the mod needs to use Ubuntu, not launchpad. I think the config can be copied from help.launchpad.net which may use the same mod to authenticate users in ~launchpad-docs.