Service Worker API - Web APIs (opens in new tab)

Problem Statement A Service Worker is a script that runs in the background of your web browser, separate from your web page, acting as a programmable network proxy. You hit this problem when you need your web app to work offline, load instantly even on slow networks, or send push notifications—things traditional web pages simply can't do. Every developer has faced that moment when a user tabs away, loses signal, and the app becomes a blank white page. Service Workers are the solution to that ...