@ideasio/add-to-homescreen-react/examples/basic-integration/public/serviceWorker.js

A React component providing add-to-home-screen functionality for progressive webapps on different platforms and browsers.

self.addEventListener('install', event => {
  event.waitUntil(Promise.resolve());
});

self.addEventListener('activate', event => {
  event.waitUntil(self.clients.claim());
});

self.addEventListener('fetch', event => {
  event.waitUntil(Promise.resolve());
});