> E.g HN isn’t a progressive web app. So you’re loading the same things over and over again. With a service worker HN could teach even more people around the wo

> E.g HN isn’t a progressive web app. So you’re loading the same things over and over again. With a service worker HN could teach even more people around the world with a spotty connection. Hacker News uses standard HTTP headers to cache all its CSS, JavaScript, and images. The only thing that gets re-downloaded when you click a link is the actual text content on the page -- usually about ten kilobytes. And isn't that almost always what you want, to make sure you see the latest posts, comments, and vote counts? Because it's standard HTML, Hacker News also works with existing features like Chrome for Android's "download page when back online" button.