 src="${ORIGIN}/resources/testharness.js"></` + `script>
  <script src="${ORIGIN}/resource-timing/resources/entry-invariants.js">
  </` + `script>
  <script>
    attribute_test(fetch, "${url}?tao=null",
      invariants.assert_tao_pass_no_redirect_http,
      "An opaque origin should be authorized to see resource timings when the" +
      "TAO header is the string 'null'");
    attribute_test(fetch, "${url}?tao=Null",
      invariants.assert_tao_failure_resource,
      "An opaque origin must not be authoriz