fix

Author: Yutaka Hirano

source

@@ -99241,14 +99241,11 @@ interface <dfn>SharedWorkerGlobalScope</dfn> : <span>WorkerGlobalScope</span> {
      <var>response</var> and <var>inside settings</var>.</p></li>
 
      <li>
-      <p>If <var>worker global scope</var>'s <span
-      data-x="concept-WorkerGlobalScope-embedder-policy">embedder policy</span> is "<code
-      data-x="coep-require-corp">require-corp</code>" and <var>is shared</var> is true, then set
+      <p>If <var>is shared</var> is true, then set
       <var>agent</var>'s <span>agent cluster</span>'s <span
-      data-x="agent-cluster-cross-origin-isolation">cross-origin isolation mode</span> to "<code
-      data-x="cross-origin-isolation-logical">logical</code>" or "<code
-      data-x="cross-origin-isolation-concrete">concrete</code>". The one chosen is
-      <span>implementation-defined</span>.</p>
+      data-x="agent-cluster-cross-origin-isolation">cross-origin isolation mode</span> to the result
+      of <span data-x="choose a cross-origin isolation mode">choosing a cross-origin isolateion
+      mode</span> with <var>worker global scope</var>.
 
       <p class="XXX">This really ought to be set when the agent cluster is created, which requires a
       redesign of this section.</p>
@@ -99433,6 +99430,20 @@ interface <dfn>SharedWorkerGlobalScope</dfn> : <span>WorkerGlobalScope</span> {
   an <span>active needed worker</span> and the worker continues executing even after its <span
   data-x="dom-WorkerGlobalScope-closing">closing</span> flag was set to true.</p>
 
+  <p>To <dfn export>choose a cross-origin isolation mode</dfn>, given a
+  <code>WorkerGlobalScope</code> <var>worker global scope</var>, run these steps:
+
+  <ol>
+    <li><p>If <var>worker global scope</var>'s <span
+    data-x="concept-WorkerGlobalScope-embedder-policy">embedder policy</span> is "<code
+    data-x="coep-require-corp">require-corp</code>", then return "<code
+    data-x="cross-origin-isolation-logical">logical</code>" or "<code
+    data-x="cross-origin-isolation-concrete">concrete</code>". The one chosen is
+    <span>implementation-defined</span>.</p></li>
+
+    <li><p>Otherwise, return "<code data-x="cross-origin-isolation-none">none</code>".
+  </ol>
+
   </div>