diff --git a/build/webpack.pkg.js b/build/webpack.pkg.js
index f134385b5..214bcc1e5 100644
--- a/build/webpack.pkg.js
+++ b/build/webpack.pkg.js
@@ -3,8 +3,6 @@ const config = require('./webpack.dev.js');
 
 const isMinify = process.argv.indexOf('-p') !== -1;
 
-delete config.serve;
-
 module.exports = Object.assign(config, {
   mode: 'production',
   entry: {
diff --git a/docs/site/mobile/index.html b/docs/site/mobile/index.html
index faee59fea..e0767fd10 100644
--- a/docs/site/mobile/index.html
+++ b/docs/site/mobile/index.html
@@ -10,13 +10,16 @@
   <title>Vant - 轻量、可靠的移动端 Vue 组件库</title>
   <script>window.Promise || document.write('<script src="//img.yzcdn.cn/huiyi/build/h5/js/pinkie.min.js"><\/script>');</script>
   <script>
-    var _hmt = _hmt || [];
-    (function() {
-      var hm = document.createElement("script");
-      hm.src = "https://hm.baidu.com/hm.js?ad6b5732c36321f2dafed737ac2da92f";
-      var s = document.getElementsByTagName("script")[0]; 
-      s.parentNode.insertBefore(hm, s);
-    })();
+    // avoid to load analytics in iframe
+    if (window.top === window) {
+      var _hmt = _hmt || [];
+      (function() {
+        var hm = document.createElement("script");
+        hm.src = "https://hm.baidu.com/hm.js?ad6b5732c36321f2dafed737ac2da92f";
+        var s = document.getElementsByTagName("script")[0]; 
+        s.parentNode.insertBefore(hm, s);
+      })();
+    }
   </script>
 </head>
 <body ontouchstart>
