Only set fetch initiator for container-initiated navigations

source

@@ -91356,9 +91356,20 @@ location.href = '#foo';</code></pre>
      origin</span>.</p></li>
 
      <li><p>Set <var>request</var>'s <span data-x="concept-request-destination">destination</span>
-     and <span data-x="concept-request-initiator-type">initiator type</span> to
-     <var>navigable</var>'s <span data-x="nav-container">container</span>'s <span
+     to <var>navigable</var>'s <span data-x="nav-container">container</span>'s <span
      data-x="concept-element-local-name">local name</span>.</p></li>
+
+     <li>
+      <p>If <var>sourceSnapshotParams</var>'s <span data-x="source-snapshot-params-client">fetch
+      client</span> is <var>navigable</var>'s <span data-x="nav-container-document">container
+      document</span>'s <span>relevant settings object</span>, then set <var>request</var>'s <span
+      data-x="concept-request-initiator-type">initiator type</span> to <var>navigable</var>'s <span
+      data-x="nav-container">container</span>'s <span data-x="concept-element-local-name">local
+      name</span>.</p>
+
+      <p class="note">This ensure that only container-initiated navigations are reported to
+      resource timing.</p>
+     </li>
     </ol>
    </li>