On GitHub, it seems like the javascript sources behind your pages is throwing their syntax highlighting off. Seems like when you embed HTML it hiccups. Any idea how one would fix this?
Update: Yep, GitHub highlights correctly with a .jsx extension - see https://github.com/nfriedly/user-agent.io/blob/jsx-test/page... - but then Next.js can't "see" the page :(
So, I'm going to have to stick with .js for now.