huh. that’s an attack other browsers have fixed by using punycode. i wonder does safari have blacklist for homoglyphs but renders others as the intended glyph.
The whitelist for Safari on macOS is kept in a text file entitled IDNScriptWhiteList.txt, located at /System/Library/Frameworks/WebKit.framework/Versions/Current/Resources
ꑮ is from Yi script, which is obviously whitelisted.