Works in Firefox on Linux for me. Probably some form of unicode normalization?

http://xn--orhcp.xn--mvh.xn--mvh.xn--orh:8000 -> http://127.0.0.1:8000

Oh wow, I think HN normalized the unicode with punycode since it's a URL. I submitted with ①②⑦.⓪.⓪.① inside the http:// and :8000 And the punicode version also works for me :)

Just tried both versions in Firefox on Linux, they work for me too.

PaleMoon browser refuses to open the xn--orhcp link, and shows nothing in the status bar for it. Right click doesn't give the option to open it either, only bookmark.

Yup, same here too. Something cool I just noticed, Firefox converts that link to 127.0.0.1:8000 in the status bar when hovering over it.

>(doesn't work on Windows btw)

Works in Gitbash in Microsoft Terminal, which is cheating a bit, but doesn't introduce a different OS.

Edit: Works in Powershell too.