lawrence wrote:

[ ... ]

> http://www.ietf.org/rfc/rfc1867.txt
>
> Is this (below) addressed to me as a web designer, or is this
> addressed to the makers of web browsers?

Section 3.3 outlines the browser's job when using
multipart/form-data, so it's largely irrelevant to web
designers. It might be useful to understand the goings-on
though.

I can't recommend anything other than the two RFCs you
mentioned (nos. 1867 and 2388) and chapter 17 of the HTML
spec. It's all there.

[ ... ]

Have a good Sunday! if there's anything left.

--
Jock