It may surprise you, but the HTTP headers, at least up until very recent RFCs that superceded RFC 2616, allowed split headers, and that split was according to 822.

Often, it helps to look at the source material for a protocol instead of only reading the implementation(s).

Searching the (linked) RFC 2616 returns many more instances where HTTP relies on pre-existing standards like 822.

In reply to Re: CGI.pm programmed with RFC 822 standards WTF! by Corion
in thread CGI.pm programmed with RFC 822 standards WTF! by $h4X4_|=73}{

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