diff --git a/core/modules/settings_tray/js/settings_tray.es6.js b/core/modules/settings_tray/js/settings_tray.es6.js
index a50f45198d..1780f47c01 100644
--- a/core/modules/settings_tray/js/settings_tray.es6.js
+++ b/core/modules/settings_tray/js/settings_tray.es6.js
@@ -5,7 +5,7 @@
  * @private
  */
 
-(function ($, Drupal, drupalSettings) {
+(($, Drupal, { settings_tray: settings }) => {
   const blockConfigureSelector = '[data-settings-tray-edit]';
   const toggleEditSelector = '[data-drupal-settingstray="toggle"]';
   const itemsToToggleSelector = '[data-off-canvas-main-canvas], #toolbar-bar, [data-drupal-settingstray="editable"] a, [data-drupal-settingstray="editable"] button';
@@ -165,14 +165,12 @@
           instance.options.data.dialogOptions = {};
         }
 
-        if (drupalSettings.hasOwnProperty('settings_tray') && drupalSettings.settings_tray.hasOwnProperty('overridden_blocks')) {
-          Object.keys(drupalSettings.settings_tray.overridden_blocks).forEach(
-            (blockId) => {
-              if (instance.options.url.indexOf(`/admin/structure/block/manage/${blockId}/off-canvas`) !== -1) {
-                instance.options.url = drupalSettings.settings_tray.overridden_blocks[blockId];
-              }
-            },
-          );
+        if (settings && settings.hasOwnProperty('overridden_blocks')) {
+          Object.keys(settings.overridden_blocks).forEach((blockId) => {
+            if (instance.options.url.indexOf(`/admin/structure/block/manage/${blockId}/off-canvas`) !== -1) {
+              instance.options.url = settings.overridden_blocks[blockId];
+            }
+          });
         }
 
         instance.options.data.dialogOptions.settingsTrayActiveEditableId = $(instance.element).parents('.settings-tray-editable').attr('id');
@@ -264,4 +262,4 @@
       }
     },
   });
-}(jQuery, Drupal, drupalSettings));
+})(jQuery, Drupal, drupalSettings);
diff --git a/core/modules/settings_tray/js/settings_tray.js b/core/modules/settings_tray/js/settings_tray.js
index 9d7e80a1bf..10e702ff3f 100644
--- a/core/modules/settings_tray/js/settings_tray.js
+++ b/core/modules/settings_tray/js/settings_tray.js
@@ -5,7 +5,9 @@
 * @preserve
 **/
 
-(function ($, Drupal, drupalSettings) {
+(function ($, Drupal, _ref) {
+  var settings = _ref.settings_tray;
+
   var blockConfigureSelector = '[data-settings-tray-edit]';
   var toggleEditSelector = '[data-drupal-settingstray="toggle"]';
   var itemsToToggleSelector = '[data-off-canvas-main-canvas], #toolbar-bar, [data-drupal-settingstray="editable"] a, [data-drupal-settingstray="editable"] button';
@@ -101,10 +103,10 @@
         instance.options.data.dialogOptions = {};
       }
 
-      if (drupalSettings.hasOwnProperty('settings_tray') && drupalSettings.settings_tray.hasOwnProperty('overridden_blocks')) {
-        Object.keys(drupalSettings.settings_tray.overridden_blocks).forEach(function (blockId) {
+      if (settings && settings.hasOwnProperty('overridden_blocks')) {
+        Object.keys(settings.overridden_blocks).forEach(function (blockId) {
           if (instance.options.url.indexOf('/admin/structure/block/manage/' + blockId + '/off-canvas') !== -1) {
-            instance.options.url = drupalSettings.settings_tray.overridden_blocks[blockId];
+            instance.options.url = settings.overridden_blocks[blockId];
           }
         });
       }