sw-precache is a service worker precache generator used to create scripts that enable offline functionality for web applications. It acts as a build-time asset cache manager that hashes static files and manages their versioning within a service worker cache.
The project provides a runtime cache configurator to define caching strategies and request handlers for dynamic content based on URL patterns. It also includes an offline fallback handler to intercept network failures and serve cached fallback pages.
The toolset covers the generation of service worker code and manifests, content-hash based versioning, and the interception of fetch events. It provides a command line interface for generating service worker files using configuration files and custom flags.
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