PWA Testing
Service workers are powerful but notoriously difficult to test. They run in a separate thread, control network requests, manage caches, and have a complex lifecycle with install, activate, and fetch events. When a service worker misbehaves, it can silently break your entire app — serving stale content, blocking requests, or failing
PWA Testing
Push notifications are one of the most impactful PWA features — and one of the most painful to test. They involve permission APIs, service worker push event handlers, Web Push Protocol, notification click handling, and platform-specific rendering quirks. Getting them wrong means users miss critical updates or, worse, get spammed
PWA Testing
A PWA that loads slowly or scores poorly on Core Web Vitals fails to deliver on the promise of an app-like experience. Lighthouse is the standard tool for PWA auditing, but running it manually isn't enough — you need automated performance testing in CI, regression detection, and monitoring
PWA Testing
Offline mode is one of the defining features of a Progressive Web App. Users expect apps to work — or at least degrade gracefully — when connectivity drops. Testing this is harder than it sounds: offline behavior involves service workers, caches, IndexedDB, background sync, and UI state machines that all have to
PWA Testing
PWA installability — the ability to add your web app to the home screen and run it as a standalone app — is one of the most visible PWA features. It's also surprisingly easy to break. A missing icon size, a misconfigured manifest property, or a service worker scope issue