https://ctf0.wordpress.com/2018/07/14/laravel-and-pwa/
Workbox runtime caching recipes
Your Service Worker script will need to import in Workbox and initialize it before calling any of the routes documented in this write-up, similar to the below:
importScripts('workbox-sw.prod.v1.3.0.js');
const workbox = new WorkboxSW();