Courses / Build a Progressive Web App for a Local Business
Lesson 9 of 10

Project 2: Add Service Worker for Offline Support

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Video by Rethinking UI on YouTube · 17 min. We did not make this video and we do not host it — watching it here still counts as a view for the creator.

Enable the built‑in service worker in CRA or add Workbox manually. Beginners often forget to register the worker, so nothing gets cached.

Test offline by disabling network in DevTools; the catalog and images should still load. This step turns your site into a true PWA that customers can rely on during spotty connections.

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