End scripts do not need WDN dependency.

www/templates/end-scripts.tpl.php

 <script>
-require(['jquery', 'wdn', '<?php echo $localScriptUrl ?>'], function($, WDN, UNLSearch) {
+require(['jquery', '<?php echo $localScriptUrl ?>'], function($, UNLSearch) {
 	var gSearchDefer = $.Deferred();
 	window.searchInit = function() {
         window.searchInit = $.noop;