import { enableProdMode } from '@angular/core' import { platformBrowserDynamic } from '@angular/platform-browser-dynamic' import { AppModule } from './app/app.module' import { environment } from './environments/environment' import { hmrBootstrap } from './hmr' if (environment.production) { enableProdMode() } const bootstrap = () => platformBrowserDynamic() .bootstrapModule(AppModule) .then(bootstrapModule => { // TODO: Uncomment and remove unregistration when https://github.com/angular/angular/issues/21191 is fixed // TODO: Remove when https://github.com/angular/angular-cli/issues/8779 is fixed? // if ('serviceWorker' in navigator && environment.production) { // navigator.serviceWorker.register('/ngsw-worker.js') // .catch(err => console.error('Cannot register service worker.', err)) // } navigator.serviceWorker.getRegistrations().then(registrations => { for (const registration of registrations) { registration.unregister() } }) return bootstrapModule }) .catch(err => { console.error(err) return null }) 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() }