Bug 189384 Composer window slow to load r=brade sr=sfraser a=asa

editor/ui/composer/content/editorUtilities.js

@@ -226,12 +226,12 @@ function GetCurrentEditorElement()
   var tmpWindow = window;
   
   do {
-    // Get the <editor> element(s)
-    var editorList = tmpWindow.document.getElementsByTagName("editor");
-
-    // This will change if we support > 1 editor element
-    if (editorList && editorList.length > 0)
-      return editorList[0];
+    // We want the equivalent of document.commandDispatcher.focusedWindow.frameElementInternal
+    // or even document.FindContentForSubDocument(document.commandDispatcher.focusedWindow.document)
+    // but those aren't scriptable, so hardcode in the id for now
+    var editor = tmpWindow.document.getElementById("content-frame");
+    if (editor)
+      return editor;
 
     tmpWindow = tmpWindow.opener;
   }