Implementing Service Workers in Phoenix with Workbox

The article provides a comprehensive step-by-step guide on how to implement service workers in Phoenix applications, focusing on caching images to improve performance. It explains the benefits of using service workers, particularly reducing repetitive downloads of assets to enhance user experience. The author discusses the Cache First strategy for loading images, detailing how to set up a service worker to ensure that images are fetched from the user's local storage whenever possible. It includes details on registering routes, setting up cache strategies with Workbox, and the necessary configurations in the Phoenix environment. Additionally, best practices for managing dependencies, enabling CSP (Content Security Policy), and building for production are outlined, making the guide practical for developers working with Phoenix and LiveView.