+const bootstrap = () => platformBrowserDynamic()
+ .bootstrapModule(AppModule)
+
+if (environment.hmr) {
+ if (module[ 'hot' ]) {
+ hmrBootstrap(module, bootstrap)
+ } else {
+ console.error('HMR is not enabled for webpack-dev-server!')
+ console.log('Are you using the --hmr flag for ng serve?')
+ }
+} else {
+ bootstrap()
+}