What is a service worker
Explore the role of service workers as JavaScript proxies that run separately from the main thread to improve web app performance. Understand their secure operation, lifecycle, communication methods, and how they enhance offline functionality and background tasks.
We'll cover the following...
We'll cover the following...
Definition
A service worker is a special kind of web worker, but there is a subtle difference between them:
A service worker is a JavaScript file acting as a proxy between our web application and the network.
Web workers are scripts with a generic purpose, commonly used to lift heavy tasks from the main thread and run them in a different context.
A service worker (in short, SW) can intercept HTTP requests and serve the responses from the network or a local cache, according to which caching ...