Progressive Web Apps·Progressive Web Apps essentials

Service worker

A service worker intercepts network requests.

Intermediate 10 min read Lesson 2 of 150 Challenge included
What you will be able to do
  • Register the worker.
  • Handle fetch events.
  • Version the cache.

In plain English

A service worker intercepts network requests.

  • Register the worker.
  • Handle fetch events.
  • Version the cache.
sw.jsJavaScript
self.addEventListener('install', (event) => {
  event.waitUntil(caches.open('v1').then((cache) => cache.addAll(['/', '/offline'])))
})
Your turn

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Answer from memory: What does a service worker intercept?

TEXT · starter
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What does a service worker intercept?

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Lesson 2 of 150 · 0% of course