ngsw-manifest.json

{
  "external": {
    "urls": [
      {"url": "https://fonts.googleapis.com/icon?family=Material+Icons"},
      {"url": "https://fonts.googleapis.com/css?family=Roboto:300,400,500,600,700"},
      {"url": "https://ajax.googleapis.com/ajax/libs/hammerjs/2.0.8/hammer.min.js"},
      {"url": "https://cdnjs.cloudflare.com/ajax/libs/web-animations/2.2.5/web-animations.min.js"},
      {"url": "https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.5.0/styles/monokai_sublime.min.css"},
      {"url": "https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.5.0/highlight.min.js"},
      {"url": "https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.5.0/languages/typescript.min.js"},
      {"url": "http://reactivex.io/rxjs/img/combineAll.png"},
      {"url": "http://reactivex.io/rxjs/img/combineLatest.png"}
    ]
  }
}