Progressive Web Apps·Progressive Web Apps essentials

Caching strategies

Choose cache-first or network-first by resource type.

Intermediate 10 min read Lesson 3 of 150 Challenge included
What you will be able to do
  • Cache-first for hashed assets.
  • Network-first for HTML.
  • Stale-while-revalidate for feeds.

In plain English

Choose cache-first or network-first by resource type.

  • Cache-first for hashed assets.
  • Network-first for HTML.
  • Stale-while-revalidate for feeds.
cache.jsJavaScript
self.addEventListener('fetch', (event) => {
  event.respondWith(caches.match(event.request).then((hit) => hit || fetch(event.request)))
})
Your turn

Explain it back

Easy

Answer from memory: Which strategy suits hashed assets?

TEXT · starter
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Knowledge checkQuestion 1

Which strategy suits hashed assets?

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Lesson 3 of 150 · 0% of course