Defined in RFC 2324, published on 1 April 1998 as an April Fools' Day RFC as part of an April Fools prank.
An extension, HTCPCP-TEA, was published as RFC 7168 on 1 April 2014 to support brewing teas, which is also an April Fools' Day RFC.
- based on information obtained 2018-05-31-
- based on information obtained 2018-05-31-