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    Create a Progressive Web App with React and Register a Service Worker


    A Progressive Web App (PWA) can cache static assets, which allows an app to be rendered faster, and even allows it to operate offline!

    We’ll start a new app with create-react-app, and enable the service worker by registering it in index.js. Then we’ll build and serve a production version of the app - and show that it can work offline by disabling the server and refreshing the tab.