diff --git a/source b/source
index d0460f2fdd3..bd3b1d69704 100644
--- a/source
+++ b/source
@@ -2692,6 +2692,7 @@ a.setAttribute('href', 'https://example.com/'); // change the content attribute
      <li><dfn data-x-href="https://fetch.spec.whatwg.org/#reserve-deferred-fetch-quota">reserve deferred fetch quota</dfn></li>
      <li><dfn data-x-href="https://fetch.spec.whatwg.org/#potentially-free-deferred-fetch-quota">potentially free deferred fetch quota</dfn></li>
      <li><dfn data-x-href="https://fetch.spec.whatwg.org/#is-offline">is offline</dfn></li>
+     <li><dfn data-x-href="https://fetch.spec.whatwg.org/#concept-navigation-tao-check">navigation TAO check</dfn></li>
      <li>
       <dfn data-x="concept-response"
       data-x-href="https://fetch.spec.whatwg.org/#concept-response">response</dfn> and its
@@ -2710,6 +2711,7 @@ a.setAttribute('href', 'https://example.com/'); // change the content attribute
        <li><dfn data-x="concept-response-service-worker-timing-info" data-x-href="https://fetch.spec.whatwg.org/#response-service-worker-timing-info">service worker timing info</dfn></li>
        <li><dfn data-x="concept-response-has-cross-origin-redirects" data-x-href="https://fetch.spec.whatwg.org/#response-has-cross-origin-redirects">has-cross-origin-redirects</dfn></li>
        <li><dfn data-x="concept-response-timing-allow-passed" data-x-href="https://fetch.spec.whatwg.org/#concept-response-timing-allow-passed">timing allow passed</dfn></li>
+       <li><dfn data-x="concept-response-navigation-timing-allow-check-set" data-x-href="https://fetch.spec.whatwg.org/#response-navigation-timing-allow-check-set">navigation timing allow check set</dfn></li>
        <li>
         <dfn data-x-href="https://wicg.github.io/background-fetch/#extract-content-range-values">extract content-range values</dfn>
         <!-- TODO: move this to FETCH -->
@@ -113073,13 +113075,30 @@ location.href = '#foo';</code></pre>
      info">extracting the full timing info</span> from <var>navigationParams</var>'s <span
      data-x="navigation-params-fetch-controller">fetch controller</span>.</p></li>
 
-     <li><p>Let <var>redirectCount</var> be 0 if <var>navigationParams</var>'s <span
-     data-x="navigation-params-response">response</span>'s <span
-     data-x="concept-response-has-cross-origin-redirects">has cross-origin redirects</span> is
-     true; otherwise <var>navigationParams</var>'s <span
+     <li><p>Let <var>redirectCount</var> be <var>navigationParams</var>'s <span
      data-x="navigation-params-request">request</span>'s <span
      data-x="concept-request-redirect-count">redirect count</span>.</p></li>
 
+     <li>
+      <p>If <var>navigationParams</var>'s <span data-x="navigation-params-response">response</span>'s
+      <span data-x="concept-response-has-cross-origin-redirects">has cross-origin redirects</span>
+      is true:</p>
+
+      <ol>
+       <li><p>If <var>navigationParams</var>'s <span
+       data-x="navigation-params-request">request</span>'s <span
+       data-x="concept-request-client">client</span> is not null and <var>navigationParams</var>'s
+       <span data-x="navigation-params-request">request</span>'s <span
+       data-x="concept-request-referrer">referrer</span> is "<code data-x="">no-referrer</code>",
+       then set <var>redirectCount</var> to 0.</p></li>
+
+       <li><p>Otherwise, if <span data-x="navigation TAO check">navigation TAO check</span> given
+       <var>navigationParams</var>'s <span data-x="navigation-params-response">response</span> and
+       <var>navigationParams</var>'s <span data-x="navigation-params-origin">origin</span> returns
+       failure, then set <var>redirectCount</var> to 0.</p></li>
+      </ol>
+     </li>
+
      <li><p><span>Create the navigation timing entry</span> for <var>document</var>, given
      <var>fullTimingInfo</var>, <var>redirectCount</var>, <var>navigationTimingType</var>,
      <var>navigationParams</var>'s <span data-x="navigation-params-response">response</span>'s