diff --git a/core/modules/views/js/ajax_view.js b/core/modules/views/js/ajax_view.js
index 6422dd0a5563f401e2dc0f26a4c22695f76ff1cc..85975b56ce3561a0f42921e2c6d8773e6181fde2 100644
--- a/core/modules/views/js/ajax_view.js
+++ b/core/modules/views/js/ajax_view.js
@@ -128,13 +128,11 @@
   /**
    * @return {bool}
    *   If there is at least one parent with a view class return false.
-   *
-   * @todo remove .size() replace with .length.
    */
   Drupal.views.ajaxView.prototype.filterNestedViews = function () {
     // If there is at least one parent with a view class, this view
     // is nested (e.g., an attachment). Bail.
-    return !this.$view.parents('.view').size();
+    return !this.$view.parents('.view').length;
   };
 
   /**