Why do web browsers even allow access to localhost? Seems like developers just use this to abuse/violate user preferences anyway. I think I'd be happy with a p

Why do web browsers even allow access to localhost? Seems like developers just use this to abuse/violate user preferences anyway. I think I'd be happy with a popup once-per-tab asking me for permission for a web page to talk to a local web server... Might even be okay if it's scary (Are you a developer?)