RFC 3234 "Middleboxes: Taxonomy and Issues" says:
1.1. Terminology
The phrase "middlebox" was coined by Lixia Zhang as a graphic
description of a recent phenomenon in the Internet. A middlebox is
defined as any intermediary device performing functions other than
the normal, standard functions of an IP router on the datagram path
between a source host and destination host.
Even a load balancer may considered "middlebox", see section 2.8 of RFC
3234.
Anyway it just depends on what you call middlebox and doesn't matter
much regarding draft-green-tls-static-dh-in-tls13-01.
Roland
Am 15.07.2017 um 22:47 schrieb Salz, Rich:
I think reverse proxies are middleboxes regardless if they have official origin
TLS certificates. From the TLS viewpoint they may be the endpoint although
from the HTTP viewpoint they are not.
This is wrong.
From the HTTP viewpoint -- of the origin! -- they are not middleboxes., not
intermediaries.
It is no different from a load balancer sending you to a different data center.
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