5 places service workers are in use today
Tinder (don’t pretend you don’t know what it is) now offers a web alternative to its mobile app. And guess what… it’s a mainstream app built with Workbox.
Pinterest is a great example of using service workers for complex caching behaviour on a site with extensive functionality. You can inspect the service worker in Chrome to see how it’s implemented.
Unreal Engine www.unrealengine.com
If you thought Pinterest’s service worker was complex, check out Epic Games’ Unreal Engine website, which has some impressive visuals and interaction. It uses sw-toolbox – a predecessor to Workbox.
If you’re questioning the ubiquity of service workers, look no further than Google itself, which will install one to cache its static assets when you visit its homepage.
Wired is another one which uses Workbox, and is a great place to see the Workbox CLI generating a manifest of files to cache as part of the build pipeline.