Browsers: what it would look like if Postel's Law were somehow made manifest in C++ and also essential to modern life

Definitely don't use "SuperCookie" as that's a thing: https://en.wikipedia.org/wiki/HTTP_cookie#Supercookie

But why wouldn't web pages written in ObjC be just awesome and easy to manage?!

https://en.wikipedia.org/wiki/WebObjects

I can still remember when they'd purposefully take down their store page for some godforsaken reason. The mind reels

Encoding is at least solvable, but every browser having their own cookie length versus some standard value makes that some nonsense. Kong actually has a plugin to split (and, of course, recombine) cookies just to work around this

I'm not them, but that 419 pattern in the logs is burned into my adrenaline response: https://duckduckgo.com/?t=ffab&q=nginx+419+cookie+header&ia=...