It's a really basic browser. It's made less as an independent thing, and more as a reply to https://cursor.com/blog/scaling-agents, so as long as it does more or less the same as theirs, but is less LOC, it does what I set out for it to do :)

> I get to evaluate on stuff like links being consistently blue and underlined

Yeah, this browser doesn't have a "default stylesheet" like a regular browser. Probably should have added that, but was mostly just curious about rendering the websites from the web, rather than using what browsers think the web should look like.

> It may be that some of the rendering is not supported on windows- the back button certainly isn't.

Hmm, on Windows 11 the back button should definitively work, tried that just last night. Are you perhaps on Windows 10? I have not tried that myself, should work but might be why.

It is both extraordinarily impressive in an absolute sense, and fairly disappointing specifically comparing my result on a a random smattering of other no-js websites, to the expectation I had from the simonw screenshot (which to be clear is not an expectation you had control over, as you are not simonw). I'm familiar with this pattern from all the rest of my trying frontier ML results!

Yep, I ran it on an old windows 10 VM I had puttering about.

I think it must have a default link styling somewhere, as some links are the classic blue that as far as I know I intentionally styled to be black- but this could be css spaghetti in tufte.css finally coming to haunt me.