Proxies can operate just like user-agents if they want.
I think we're talking about different time frames for multiplexing. I think you're thinking about multiplexing outstanding requests over one connection using pipelining, and I'm thinking about switching the connection from one client to another, when there are no outstanding requests on the connection. I think it's 100, for the purpose for which 8.1.4 is intended, and 1000, for the purpose for which sticky header contexts are intended. All rights reserved.