Handle incumbent settings object for promise jobs

source

@@ -86682,8 +86682,8 @@ interface <dfn>NavigatorOnLine</dfn> {
   stack</dfn>, initially empty. Roughly speaking, it is used to determine the <span>incumbent
   settings object</span> when no author code is on the stack, but author code is responsible for the
   current algorithm having been run in some way. When Web IDL is used to <span
-  data-x="es-invoking-callback-functions">invoke</span> author code, it manipulates this stack. <ref
-  spec="WEBIDL"/></p>
+  data-x="es-invoking-callback-functions">invoke</span> author code, or when <span>EnqueueJob</span>
+  invokes a promise job, they manipulate this stack. <ref spec="WEBIDL"></p>
 
   <p>The <dfn>incumbent settings object</dfn> is determined as follows:</p>
 
@@ -86912,19 +86912,24 @@ interface <dfn>NavigatorOnLine</dfn> {
   <ol>
    <li><p>Assert: <var>queueName</var> is <code data-x="">"PromiseJobs"</code>. (<code
    data-x="">"ScriptJobs"</code> must not be used by user agents.)</p></li>
-   <li><p>Let <var>settings</var> be the <span data-x="concept-realm-settings-object">settings
+   <li><p>Let <var>job settings</var> be the <span data-x="concept-realm-settings-object">settings
    object</span> of <var>job</var>.[[Realm]].</p></li>
+   <li><p>Let <var>incumbent settings</var> be the <span>incumbent settings object</span>.</p></li>
    <li>
-    <p><span>Queue a microtask</span>, on <var>settings</var>'s <span>responsible event
+    <p><span>Queue a microtask</span>, on <var>job settings</var>'s <span>responsible event
     loop</span>, to perform the following steps:</p>
 
     <ol>
-     <li><p><span>Check if we can run script</span> with <var>settings</var>. If this returns "do
-     not run" then abort these steps.</p></li>
-     <li><p><span>Prepare to run script</span> with <var>settings</var>.</p></li>
+     <li><p><span>Check if we can run script</span> with <var>job settings</var>. If this returns
+     "do not run" then abort these steps.</p></li>
+     <li><p>Push <var>incumbent settings</var> onto the <span>backup incumbent settings object
+     stack</span>.</p></li>
+     <li><p><span>Prepare to run script</span> with <var>job settings</var>.</p></li>
      <li><p>Let <var>result</var> be the result of performing the abstract operation specified by
      <var>job</var>, using the elements of <var>arguments</var> as its arguments.</p></li>
-     <li><p><span>Clean up after running script</span> with <var>settings</var>.</p></li>
+     <li><p><span>Clean up after running script</span> with <var>job settings</var>.</p></li>
+     <li><p>Pop <var>incumbent settings</var> off of the <span>backup incumbent settings object
+     stack</span>.</p></li>
      <li><p>If <var>result</var> is an abrupt completion, <span>report the exception</span> given by
      <var>result</var>.[[Value]].</p></li>
     </ol>