404. That’s an error.

The requested URL /users/oauth/?server=facebook&nv_redirect=8VT5q4oQ9yEjInXl5lBoQgviEiiEsKOJRWUGBkLdirNZ49vJ0bCEoWxCZpYmh9RgJ9FLgMDYFLtxIoEqEkC7YwIJtCln2GiUBnXmp-rME60%2C was not found on this server. That’s all we know.