Scripts served from Cache Storage where a Service Worker is present can eagerly opt into code caching as there’s a good chance the browser knows the user will end up using these resources on repeat views. This was to take advantage of V8’s code caching, helping skip some of the parse/compile cost on repeat views so they can load quicker. 1st: Pinterest’s Service Worker only did runtime caching of scripts lazy-loaded on demand.This work was rolled out in several smaller, iterative steps. When viewing your following tab, the pins of the people you follow. Pinterest for iPad allows you to view your pinboards, pin your inspirations, browse by category, follows new boards, and more. It features a gorgeous design with an easy-to-access side panel. Pinterest also use webpack’s named chunks to precache top-level async route bundles. The Pinterest app has gone universal and is now available on both the iPhone and iPad. They define a precache for the initial bundles loaded by the application shell (webpack’s runtime, vendor and entr圜hunks) too.Īs Pinterest is a site with a global presence, supporting multiple languages, they also generate a per-locale Service Worker configuration so they can precache locale bundles. To learn more about caching strategies with Service Worker, read Jake Archibald’s Offline Cookbook. If the network request succeeds, update the cache. Otherwise try to fetch the resource from the network.

In a cache-first setup, if a request matches a cache entry, respond with that.

Pinterest app open