.github.io/webappsec-referrer-policy/#strip-url.
      assert_equals(referrer, undefined);
    })();
  } else if (test_name === "testFetchURLReferrer") {
    // <iframe src="about:blank"> inherits its parent's referrer policy.
    // Note: Setting an explicit URL as referrer succeeds
    // because the same-origin check at
    // https://fetch.spec.whatwg.org/#dom-request
    // is done against <iframe>'s origin, which inherits the parent
    // Document's origin == location.orgin. Furthermore, since the if