diff --git a/core/modules/node/node.preview.js b/core/modules/node/node.preview.js
index 1ddc01c..a8e61bc 100644
--- a/core/modules/node/node.preview.js
+++ b/core/modules/node/node.preview.js
@@ -30,9 +30,12 @@
    */
   Drupal.behaviors.nodePreviewSwitchViewMode = {
     attach: function (context) {
-      $(context).find('[data-drupal-autosubmit]').on('formUpdated.preview', function() {
-        $(this.form).trigger('submit');
-      });
+      var $autosubmit = $(context).find('[data-drupal-autosubmit]').once('autosubmit');
+      if ($autosubmit.length) {
+        $autosubmit.on('formUpdated.preview', function() {
+          $(this.form).trigger('submit');
+        });
+      }
     }
   };