|Document||Type||Expired Internet-Draft (individual)|
|Intended RFC status||(None)|
Expired & archivedpdf htmlized (tools) htmlized bibtex
|Stream||Stream state||(No stream defined)|
|RFC Editor Note||(None)|
|Send notices to||(None)|
The Internet Content Adaptation Protocol (ICAP)  provides simple, object-based content vectoring for HTTP services. User-defined header extensions are widely used by many ICAP client and server implementations. Some implementations have also introduced new ICAP methods. This document describes and defines a number of ICAP extensions to ensure ongoing interoperability between the implementations.
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