Lesson 8 / 29

Caching strategies

Master different caching strategies to optimize performance and offline capability.

Strategy patterns

Caching strategies determine when to serve cached vs. fresh content. Common patterns include cache-first, network-first, stale-while-revalidate, and race.

Caching strategy flows

Visualize the decision trees for different caching strategies.

Diagram showing cache-first, network-first, and stale-while-revalidate strategy flows. — Figure 4.1 — Common PWA caching strategy decision paths.

A common trap

Different resources need different strategies. Use cache-first for static assets, network-first for HTML, and stale-while-revalidate for APIs.

Choosing the right strategy for your use case

Decision matrix for selecting cache-first, network-first, or hybrid approaches.