Resolve #3238870 "Parsehtml false"

Closes #3238870

core/misc/ajax.js

@@ -1333,7 +1333,7 @@
       const settings = response.settings || ajax.settings || drupalSettings;
 
       // Parse response.data into an element collection.
-      let $newContent = $($.parseHTML(response.data, document, true));
+      let $newContent = $($.parseHTML(response.data, document, false));
       // For backward compatibility, in some cases a wrapper will be added. This
       // behavior will be removed before Drupal 9.0.0. If different behavior is
       // needed, the theme functions can be overridden.