404. That’s an error.

The requested URL /users/oauth/?server=facebook&nv_redirect=c8VWz6tSZt8eg_aL9atFTbYmw1uVV-xWq-7QMcO4mSskfocBh2E9UfZ59zW_qu_W6L363mmHpho8mJIs5wdHDK6D17jvklD-chwl91I_doM%2C was not found on this server. That’s all we know.