Service worker cache

One of the most significant benefits of service workers (from a performance perspective, at least) is their ability to proactively control the caching of assets . A web application that can cache all of its necessary resources should load substantially faster for returning visitors.

A service worker is a script that your browser runs in the background, separate from a web page, opening the door to features that don’t need a web page or user interaction . Today, they already include features like push notifications and background sync.

Put simply, a service worker is a JavaScript file used to cache certain assets of your application . It works by allowing a developer to control how network requests are handled by the app.30 Ağu 2020

One of the biggest benefits of service workers is their ability to support offline experiences . In the past, the AppCache API could be used to provide limited offline support, but service workers have now made AppCache obsolete. Loading locally cached data always takes less time than retrieving data from the web.12 Tem 2018