fix

assets/jquery-lazy/plugins/jquery.lazy.script.js

@@ -0,0 +1,28 @@
+/*!
+ * jQuery & Zepto Lazy - Script Plugin - v1.2
+ * http://jquery.eisbehr.de/lazy/
+ *
+ * Copyright 2012 - 2018, Daniel 'Eisbehr' Kern
+ *
+ * Dual licensed under the MIT and GPL-2.0 licenses:
+ * http://www.opensource.org/licenses/mit-license.php
+ * http://www.gnu.org/licenses/gpl-2.0.html
+ */
+;(function($) {
+    // loads javascript files for script tags, like:
+    // <script data-src="file.js" type="text/javascript"></script>
+    $.lazy(['js', 'javascript', 'script'], 'script', function(element, response) {
+        if (element[0].tagName.toLowerCase() === 'script') {
+            element.attr('src', element.attr('data-src'));
+
+            // remove attribute
+            if (this.config('removeAttribute')) {
+                element.removeAttr('data-src');
+            }
+        }
+        else {
+            // use response function for Zepto
+            response(false);
+        }
+    });
+})(window.jQuery || window.Zepto);