client/src/main.ts

   1 import { enableProdMode } from '@angular/core'
   2 import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'
   3
   4 import { AppModule } from './app/app.module'
   5 import { environment } from './environments/environment'
   6
   7 import { hmrBootstrap } from './hmr'
   8
   9 if (environment.production) {
  10   enableProdMode()
  11 }
  12
  13 const bootstrap = () => platformBrowserDynamic()
  14   .bootstrapModule(AppModule)
  15   .then(bootstrapModule => {
  16     // TODO: Uncomment and remove unregistration when https://github.com/angular/angular/issues/21191 is fixed
  17     // TODO: Remove when https://github.com/angular/angular-cli/issues/8779 is fixed?
  18     // if ('serviceWorker' in navigator && environment.production) {
  19     //   navigator.serviceWorker.register('/ngsw-worker.js')
  20     //     .catch(err => console.error('Cannot register service worker.', err))
  21     // }
  22
  23     if (navigator.serviceWorker && typeof navigator.serviceWorker.getRegistrations === 'function') {
  24       navigator.serviceWorker.getRegistrations()
  25                .then(registrations => {
  26                  for (const registration of registrations) {
  27                    registration.unregister()
  28                  }
  29                })
  30     }
  31
  32     return bootstrapModule
  33   })
  34   .catch(err => {
  35     console.error(err)
  36     return null
  37   })
  38
  39 if (environment.hmr) {
  40   if (module[ 'hot' ]) {
  41     hmrBootstrap(module, bootstrap)
  42   } else {
  43     console.error('HMR is not enabled for webpack-dev-server!')
  44     console.log('Are you using the --hmr flag for ng serve?')
  45   }
  46 } else {
  47   bootstrap()
  48 }