How Javascript Service Workers Increased Our Site Speed by 97.5%

The authors of the website Vivid's design system documentation site describe how they improved their website's performance by using service workers, which are a powerful tool for web developers that allow them to control communication between the server and client. The main goal was to reduce the number of calls to the server and speed up page load times. To achieve this, they removed prefetching, bundled all files into one big bundle, and implemented caching using service workers. The service worker intercepts requests, caches responses, and returns cached responses on subsequent requests, reducing the need for network requests. They also implemented versioning for their service worker to ensure that users receive the latest version of the application. By implementing these changes, they were able to improve their website's performance, reduce load times, and provide a better user experience.