兼容支持 ie,覆盖99.5%浏览器

build/webpack.base.conf.js

@@ -80,7 +80,21 @@ $GLOBAL.BaseConfig = {
         exclude: /(node_modules)|(dist)/,
         loader: 'babel-loader',
         options: {
-          presets: ['env', 'stage-2'],
+          presets: [
+            'env',
+            { // env 参数
+              module: false, // 使用何种模块加载机制
+              targets: {
+                browers: [ // 参考browerslist [https://github.com/browserslist/browserslist]
+                  'cover 99.5%',
+                  'not ie <= 8',
+                  'since 2015',
+                  'last 10 iOS versions'
+                ]
+              }
+            },
+            'stage-2'
+          ],
           plugins: [
             'transform-vue-jsx',
             'syntax-dynamic-import'