404. That’s an error.

The requested URL /users/oauth/?server=facebook&nv_redirect=wXOwBWzHNXmPOJ_vmWdWUJWx8DgfXo7sbrUvq4dNe30ehBaysMtxfjXTr1rWMHZSTgs0A0kvp6eLg2sPC9cCXilPI6sZFaNPmPL_u75f23U%2C was not found on this server. That’s all we know.