[geofft]

> Claiming that it's the TLS that's speeding up the connection, which is what you mean when you say http vs https

But that's the entire argument he's making. It's not what I mean. When I go to my web host's sysadmins and say "I need to use https so I can use service workers," I don't mean "I need to use TLS so I can use service workers." I mean what I said. https was once defined as merely http + TLS (well, SSL), but it has now come to be a protocol/scheme that supports things that http does not. One of those, and certainly the biggest, is TLS. But there are other differences.

This is a comparison between http and https. It investigates the reason why https is faster, and makes it clear that the difference is that https means other things besides TLS.

[tedunangst]

As clearly noted, IIS doesn't support http2. So if it's http2 you want, telling the IIS sysadmin "I need https" is not going to address your problem.

[benaadams]

IIS on Server 2016 supports http2

[tedunangst]

Well, let's imagine for the moment that your sysadmin has chosen to only deploy officially released and supported versions of software by default. Is "please enable https" the best way to communicate that they need to install a beta version of Windows?