force webpacker-dev-server injectClient setting (#2892)

Author: crawler

lib/install/config/webpacker.yml

@@ -25,6 +25,8 @@ development:
     host: localhost
     port: 3035
     public: localhost:3035
+    # Inject browserside javascript that required by both HMR and Live(full) reload
+    inject_client: true
     # Hot Module Replacement updates modules while the application is running without a full reload
     hmr: false
     # Inline should be set to true if using HMR; it inserts a script to take care of live reloading

package/__tests__/development.js

@@ -22,7 +22,8 @@ describe('Development environment', () => {
       expect(webpackConfig).toMatchObject({
         devServer: {
           host: 'localhost',
-          port: 3035
+          port: 3035,
+          injectClient: true
         }
       })
     })

package/environments/development.js

@@ -34,6 +34,7 @@ if (
       hot: devServer.hmr,
       contentBase,
       inline: devServer.inline,
+      injectClient: devServer.inject_client,
       useLocalIp: devServer.use_local_ip,
       public: devServer.public,
       publicPath,