I am a bit confused reading Session 15.3 in the model document.
It says that processing continues step by step until a reject
the request is encountered or the last step is reached. Does
it mean that with HTTP 1.1, the client has to send and wait at
each step for the server response?
Since client may POST several IPP requests on a single HTTP 1.1
connection, if the server replys before consuming all the data
the client sends, it would be difficult for the server to locate
where the next message starts. There would be no problem if the
client closes connection after each message. Is this a requirement?