PWA Patterns

Progressive Web App patterns using Workbox 7.x for service worker management, offline-first strategies, and app-like experiences.

Service Worker Lifecycle

Installing -> Waiting -> Active
     │           │           │
  install    activated    fetch events
 (precache)  when old SW  (runtime cache)
              is gone

Workbox: Generate Service Worker

// build-sw.js (Node.js)
const { generateSW } = require('workbox-build');