#Service Worker

I've wasted hours with direct fetch mocks or vi.mock() on axios, only to find the mock drifted from the real API. MSW intercepts at the network level and eliminates that problem. Here's everything from setup to Vitest and Storybook integration.

Making your app work offline requires understanding Service Worker caching strategies. Cache-first, network-first, and stale-while-revalidate explained.

PWA characteristics and implementation