See &quot;much needed gap&quot;. Also, RFC 2324, &quot;Hyper Text Coffee Pot Control Protocol (HTCPCP&#x2F;1.0)&quot;. [1].<p>[1]: <a href="https:&#x2F;&#x2F;tools.ietf.org&#x2F;html&#x2F;rfc2324" rel="nofollow">https:&#x2F;&#x2F;tools.ietf.org&#x2F;html&#x2F;rfc2324</a>