public static ResponseHandler cors(final CorsConfig... configs) {
        return new MocoCorsHandler(configs);
    }
@Test
    public void should_support_cors_without_origin() throws Exception {
        server.response(cors());

        running(server, () -> {
            ClassicHttpResponse response = helper.getResponse(root());
            assertThat(response.getHeader("Access-Control-Allow-Origin"), nullValue());
        });
    }