Use [[GlobalEnv]] in event handler's current value

Fixes #2467.

Author: shvaikalesh

source

@@ -92471,25 +92471,32 @@ typedef <span>OnBeforeUnloadEventHandlerNonNull</span>? <dfn>OnBeforeUnloadEvent
 
         <ol>
 
+         <li><p>Let <var>realm</var> be <var>settings object</var>'s <span
+         data-x="environment settings object's Realm">Realm</span>.</p></li>
+
+         <li><p>Let <var>scope</var> be <var>realm</var>.[[GlobalEnv]].</p></li>
+
          <li>
 
           <p>If <var>eventHandler</var> is an element's <span data-x="event handlers">event
-          handler</span>, then let <var>Scope</var> be <span
+          handler</span>, then set <var>scope</var> to <span
           data-x="js-NewObjectEnvironment">NewObjectEnvironment</span>(<var>document</var>,
-          the <var>global environment</var>).</p>
+          <var>scope</var>).</p>
 
-          <p>Otherwise, <var>eventHandler</var> is a <code>Window</code> object's <span data-x="event
-          handlers">event handler</span>: let <var>Scope</var> be the <var>global environment</var>.</p>
+          <p>(Otherwise, <var>eventHandler</var> is a <code>Window</code> object's <span
+          data-x="event handlers">event handler</span>.)</p>
 
          </li>
 
-         <li><p>If <var>form owner</var> is not null, let <var>Scope</var> be
-         <span data-x="js-NewObjectEnvironment">NewObjectEnvironment</span>(<var>form owner</var>,
-         <var>Scope</var>).</p></li>
+         <li><p>If <var>form owner</var> is not null, then set <var>scope</var> to <span
+         data-x="js-NewObjectEnvironment">NewObjectEnvironment</span>(<var>form owner</var>,
+         <var>scope</var>).</p></li>
 
-         <li><p>If <var>element</var> is not null, let <var>Scope</var> be <span
+         <li><p>If <var>element</var> is not null, then set <var>scope</var> to <span
          data-x="js-NewObjectEnvironment">NewObjectEnvironment</span>(<var>element</var>,
-         <var>Scope</var>).</p></li>
+         <var>scope</var>).</p></li>
+
+         <li><p>Return <var>scope</var>.</p></li>
 
         </ol>