I like the fact that this exists, but it seems like the kind of hacks that go against the philosophy of progressive enhancement. The thing that I like about pr

I like the fact that this exists, but it seems like the kind of hacks that go against the philosophy of progressive enhancement. The thing that I like about progressive enhancement is that it "forces" the HTML documents actually represent the content. I should be able to render any site (excluding web-apps, I guess) with CSS and Javascript disabled, preferably with semantic HTML. This makes that site not only accessible to humans, but machines as well. I see a bunch of websites that have 2 versions of certain elements (for example, navigation menus) in the HTML that are hidden with @media rules to make the site "responsive". I'm scared that this @supports rule will be used in the same way. Disclaimer: I am not a frontend web developer, so my understanding of progressive enhancement might be wrong.