... and don't forgot some of the more obscure usage of HTTP, such as HTTP over USB in the USB-IF's IPP USB Specification:
http://www.usb.org/developers/devclass_docs
There isn't much point in using TLS over USB (and a lot of cost issues for that class of printer against it), and we need to continue to use the same USB end points/interfaces, so upgrade remains an important feature of HTTP/2.0 for me/Apple...
Sent from my iPad
On 2013-07-28, at 12:46 AM, Eliot Lear <lear@cisco.com> wrote:
>
> On 7/23/13 7:34 PM, William Chan (ιζΊζ) wrote:
>> FWIW, it seems reasonable to me to have the spec allow HTTPS 2.0 without TLS extension. If you want to Upgrade, be my guest. I have no plans for my browser to support that, and I don't think Google servers will support it either, because we care strongly about the advantages of TLS-ALPN vs Upgrade.
>
> Not only that, I don't think we can reasonably call this HTTP 2.0 if we have no path to do it in the clear.