尝试解决苹果safari10白屏问题

build/webpack.prod.conf.js

@@ -33,6 +33,10 @@ var webpackConfig = merge(baseWebpackConfig, {
       compress: {
         warnings: false
       },
+      // 处理 IOS10 白屏
+      mangle: {
+        safari10: true
+      },
       sourceMap: true
     }),
     // extract css into its own file