[e2e] Number of persistent connections per HTTP server?

[Greg Minshall]

> Besides, how is the client to know what a short request is vs. a long 
> one? Sometimes even the server doesn't know (when the reply is sent in 
> chunks)...

i remember that Van Jacoboson's observation on all this once upon a time was 
*something like* the server should be in charge of what bits of what URL get 
sent when since only the server really knows the details (such as, i suppose, 
sizes, etc.).