From 3864d86732bd5f400266ed53318427e75c1857b2 Mon Sep 17 00:00:00 2001
From: hetech <dengzhiyang123@126.com>
Date: Tue, 10 Sep 2019 10:06:05 +0800
Subject: [PATCH] update webpack config (#17373)

---
 build/webpack.demo.js | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/build/webpack.demo.js b/build/webpack.demo.js
index 8b770fd33..4ad30ae1f 100644
--- a/build/webpack.demo.js
+++ b/build/webpack.demo.js
@@ -16,8 +16,7 @@ const isPlay = !!process.env.PLAY_ENV;
 const webpackConfig = {
   mode: process.env.NODE_ENV,
   entry: isProd ? {
-    docs: './examples/entry.js',
-    'element-ui': './src/index.js'
+    docs: './examples/entry.js'
   } : (isPlay ? './examples/play.js' : './examples/entry.js'),
   output: {
     path: path.resolve(process.cwd(), './examples/element-ui/'),
@@ -148,6 +147,16 @@ if (isProd) {
     }),
     new OptimizeCSSAssetsPlugin({})
   );
+  // https://webpack.js.org/configuration/optimization/#optimizationsplitchunks
+  webpackConfig.optimization.splitChunks = {
+    cacheGroups: {
+      vendor: {
+        test: /\/src\//,
+        name: 'element-ui',
+        chunks: 'all'
+      }
+    }
+  };
   webpackConfig.devtool = false;
 }