diff --git a/layout/_third-party/comments/changyan.njk b/layout/_third-party/comments/changyan.njk
index 4a889ec..a69e249 100644
--- a/layout/_third-party/comments/changyan.njk
+++ b/layout/_third-party/comments/changyan.njk
@@ -3,14 +3,12 @@
 {% elif page.comments %}
   <script>
   NexT.utils.loadComments(document.querySelector('#SOHUCS'), () => {
-    var appid = '{{ theme.changyan.appid }}';
-    var conf = '{{ theme.changyan.appkey }}';
-    var width = window.innerWidth || document.documentElement.clientWidth;
-    if (width < 960) {
-      window.document.write('<script id="changyan_mobile_js" charset="utf-8" type="text/javascript" src="https://changyan.sohu.com/upload/mobile/wap-js/changyan_mobile.js?client_id=' + appid + '&conf=' + conf + '"><\/script>');
-    } else {
-      var loadJs=function(d,a){var c=document.getElementsByTagName("head")[0]||document.head||document.documentElement;var b=document.createElement("script");b.setAttribute("type","text/javascript");b.setAttribute("charset","UTF-8");b.setAttribute("src",d);if(typeof a==="function"){if(window.attachEvent){b.onreadystatechange=function(){var e=b.readyState;if(e==="loaded"||e==="complete"){b.onreadystatechange=null;a()}}}else{b.onload=a}}c.appendChild(b)};loadJs("https://changyan.sohu.com/upload/changyan.js",function(){window.changyan.api.config({appid:appid,conf:conf})});
-    }
+    NexT.utils.getScript('https://changyan.sohu.com/upload/changyan.js', () => {
+      window.changyan.api.config({
+        appid: '{{ theme.changyan.appid }}',
+        conf : '{{ theme.changyan.appkey }}'
+      });
+    });
   });
   </script>
   <script src="https://assets.changyan.sohu.com/upload/plugins/plugins.count.js"></script>
diff --git a/source/js/utils.js b/source/js/utils.js
index 68a30df..3851d6a 100644
--- a/source/js/utils.js
+++ b/source/js/utils.js
@@ -187,12 +187,12 @@ NexT.utils = {
         // Prevent selected tab to select again.
         if (element.classList.contains('active')) return;
         // Add & Remove active class on `nav-tabs` & `tab-content`.
-        element.parentNode.childNodes.forEach(target => {
+        [...element.parentNode.children].forEach(target => {
           target.classList.toggle('active', target === element);
         });
         // https://stackoverflow.com/questions/20306204/using-queryselector-with-ids-that-are-numbers
         const tActive = document.getElementById(element.querySelector('a').getAttribute('href').replace('#', ''));
-        tActive.parentNode.childNodes.forEach(target => {
+        [...tActive.parentNode.children].forEach(target => {
           target.classList.toggle('active', target === tActive);
         });
         // Trigger event