title: Angular 7 PWA - Manifest fetch failed (status: 404) at Driver
body: <p>After deploy my angular 7 project (PWA) got this error. any solution?</p>
  <blockquote>
  <p>Uncaught (in promise) Error: Manifest fetch failed! (status: 404) at
  Driver. (ngsw-worker.js:2368) at Generator.next
  () at fulfilled (ngsw-worker.js:1780)</p>
  </blockquote>