3. Service Workers
If building Progressive Web Apps (PWAs) is like building a house, the web app manifest file is like a real estate agent working to get people interested in buying your house and prepping it so that it’s move-in ready for buyers. Service workers, on the other hand, are live-in general contractors working behind the scenes to make sure the house has a solid foundation and all the walls stay up after the buyer moves in.
This chapter introduces service workers and shows how to use them to enable cool background processing in your web app. Here we build a foundation of what service workers do and how they do it, starting with simple web app resource caching and the service worker lifecycle. In the chapters that follow, I show how ...
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