Fix Uncaught TypeError: Cannot read property 'style' of null when NProgress start

production/index.html

@@ -25,9 +25,6 @@
 
     <script src="js/jquery.min.js"></script>
     <script src="js/nprogress.js"></script>
-    <script>
-        NProgress.start();
-    </script>
     
     <!--[if lt IE 9]>
         <script src="../assets/js/ie8-responsive-file-warning.js"></script>

production/js/custom.js

@@ -303,6 +303,7 @@ $(function () {
 });
 
 /** ******  Accordion  *********************** **/
+
 /** ******  scrollview  *********************** **/
 $(document).ready(function () {
   
@@ -312,4 +313,16 @@ $(document).ready(function () {
             });
 
 });
-/** ******  /scrollview  *********************** **/
\ No newline at end of file
+/** ******  /scrollview  *********************** **/
+
+/** ******  NProgress  *********************** **/
+if (typeof NProgress != 'undefined') {
+    $(document).ready(function () {
+        NProgress.start();
+    });
+
+    $(window).load(function () {
+        NProgress.done();
+    });
+}
+/** ******  NProgress  *********************** **/
\ No newline at end of file