diff --git a/lib/config/babel.js b/lib/config/babel.js
index <HASH>..<HASH> 100644
--- a/lib/config/babel.js
+++ b/lib/config/babel.js
@@ -6,10 +6,10 @@ module.exports = function (webpackConfig) {
     let babelConfig = {
         cacheDirectory: tmpDir,
         presets: [
+            // https://segmentfault.com/a/1190000006930013
             // http://leonshi.com/2016/03/16/babel6-es6-inherit-issue-in-ie10/
             [require.resolve('babel-preset-es2015'), {
-                loose: true,
-                modules: false // tree-shaking优化, http://imweb.io/topic/5868e1abb3ce6d8e3f9f99bb
+                //modules: false // tree-shaking优化, http://imweb.io/topic/5868e1abb3ce6d8e3f9f99bb
             }],
             require.resolve('babel-preset-react'),
             require.resolve('babel-preset-stage-1')
refactor: improve babel config

No longer support ie8