404. That’s an error.

The requested URL /users/oauth/?server=facebook&nv_redirect=T_aRN_fmFNcaJRSxxt8YbJlWj3sZTdE642zHr2fi2_OSuyswnSCys2KuthlzpiqFBB4JzDy4XEsCMzVTeBEX0vbA2dpis8PqCXyogB7wIX8%2C was not found on this server. That’s all we know.