combination X - Y - Z, then a remote choice can be prevented by
   always omitting at least one of the elements of the combination from
   the Accept- headers, and adding a suitable wildcard pattern to match
   the omitted element, if such a pattern is not already present.

5  Security and privacy considerations

   This specification introduces no security and privacy considerations
   not already covered in [2].  See [2] for a discussion of privacy
   risks connected to the sending of Accept- headers.





 
RFC 2296                     HTTP RVSA/1.0                    March 1998


6  Acknowledgments

   Work on HTTP content negotiation has been done since at least 1993.
   The authors are unable to trace the origin of many of the ideas
   incorporated in this document.  Many members of the HTTP working
   group have contributed to the negotiation model in this
   specification.  The authors wish to thank the individuals who have
   commented on earlier versions of this document, including Brian
   Behlendorf, Daniel DuBois, Ted Hardie, Larry Masinter, and Roy T.
   Fielding.

7  References

   [1] Fielding, R., Gettys, J., Mogul, J., Frystyk, H., and
       T. Berners-Lee, "Hypertext Transfer Protocol -- HTTP/1.1", RFC
       2068, January 1997.

   [2] Holtman, K., and A. Mutz, "Transparent Content Negotiation in
       HTTP", RFC 2295, March 1998.

8  Authors' Addresses

   Koen Holtman
   Technische Universiteit Eindhoven
   Postbus 513
   Kamer HG 6.57
   5600 MB Eindhoven (The Netherlands)

   EMail: koen@win.tue.nl


   Andrew H. Mutz
   Hewlett-Packard Company
   1501 Page Mill Road 3U-3
   Palo Alto CA 94304, USA

   Fax:   +1 415 857 4691
   EMail: mutz@hpl.hp.com














 
RFC 2296                     HTTP RVSA/1.0                    March 1998


9  Full Copyright Statement

   Copyright (C) The Internet Society (1998).  All Rights Reserved.

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   The limited permissions granted above are perpetual and will not be
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