title: How can I make "Service Worker" work in local network?
body: <p>I am building app with Angular 6 and I want this app to work offline and I am using Angular 6 with Service Worker and I want to host this app in local server with IIS but I do not have HTTPS cert.</p>
  
  <p>What can I do to make service worker work without HTTPS? The app must work on Android, iPhone and Windows.</p>