PWA_Blogs - aakash14goplani/FullStack GitHub Wiki
- https://jakearchibald.com/2014/offline-cookbook/
- https://www.afasterweb.com/2017/01/31/upgrading-your-service-worker-cache/
- https://web.dev/learn/pwa/
- https://developers.google.com/web/fundamentals/primers/service-workers
- https://developers.google.com/web/fundamentals/push-notifications
- https://developers.google.com/web/updates/2016/07/web-push-interop-wins