Chrome uses WKWebView on iOS, so it's basically safari with a different UI (so does firefox on iOS)

Yes, I know. I was saying the OP of this thread was wrong because it's not UIWebView, it's WKWebView with a JIT :).

WKWebView has JIT. In executes the JS in a different process than the hosted app; there the JIT lives, this special process is whitelisted to do JIT magic.

I understand that, the original OP was stating that none of the "browser skins" had JIT because they all used UIWebView, which isn't the case with the link I posted :p.