Fix for Uncaught RangeError issue

The issue was caused by the missing ID in the once method. Added an ID for once in toc_api/js/toc_type.js.

js/toc_type.js

@@ -9,7 +9,7 @@
 
   Drupal.behaviors.tocTypeOptions = {
     attach: function (context) {
-      $(once('.js-toc-type-options-header-min, .js-toc-type-options-header-max', context)).change(toggleHeaders);
+      $(once('toc-select-min-max', '.js-toc-type-options-header-min, .js-toc-type-options-header-max', context)).change(toggleHeaders);
     }
   };
   toggleHeaders();