Acknowledgments

This section preserves the RFC text for optimistic HTTP/1.1 protocol transitions, including request smuggling risks, parser exploit risks, existing Upgrade tokens, HTTP CONNECT requirements, and IANA status.

Acknowledgments

   This document benefited from valuable reviews and suggestions by:

   *  Mike Bishop

   *  Mohamed Boucadair

   *  Gorry Fairhurst

   *  Mark Nottingham

   *  Kazuho Oku

   *  Lucas Pardue

   *  David Schinazi

   *  Glenn Strauss

   *  Michael Sweet

   *  Willy Tarreau

   *  Martin Thomson