| Internet-Draft | Bootstrapping WebSockets with HTTP/3 | August 2021 |
| Hamilton | Expires 28 February 2022 | [Page] |
The mechanism for running the WebSocket Protocol over a single stream of an HTTP/2 connection is equally applicable to HTTP/3, but needs to be separately registered. This document describes the mechanism for HTTP/3.¶
This note is to be removed before publishing as an RFC.¶
Discussion of this document takes place on the HTTP Working Group mailing list (ietf-http-wg@w3.org), which is archived at http://lists.w3.org/Archives/Public/ietf-http-wg/.¶
Source for this draft and an issue tracker can be found at https://github.com/RyanTheOptimist/httpbis-h3-websockets.¶
This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79.¶
Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet-Drafts is at https://datatracker.ietf.org/drafts/current/.¶
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This Internet-Draft will expire on 28 February 2022.¶
Copyright (c) 2021 IETF Trust and the persons identified as the document authors. All rights reserved.¶
This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (https://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License.¶
[RFC8441] defines an extension to HTTP/2 which is also useful in HTTP/3. This extension makes use of an HTTP/2 setting. Appendix A.3 of [HTTP3] describes the required updates for HTTP/2 settings to be used with HTTP/3.¶
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all capitals, as shown here.¶
[RFC8441] defines a mechanism for running the WebSocket Protocol [RFC6455] over a single stream of an HTTP/2 connection. It defines an Extended CONNECT method which specifies a new ":protocol" pseudo header field and new semantics for the ":path" and ":authority" pseudo header fields. It also defines a new HTTP/2 SETTING sent by a server to allow the client to use Extended CONNECT.¶
The semantics of the headers and SETTING are identical to those in HTTP/2 as defined [RFC8441]. The SETTINGS_ENABLE_CONNECT_PROTOCOL value is 0x08 (decimal 8), as in HTTP/2.¶
This document introduces no new security considerations beyond those discussed in [RFC8841].¶
This document registers a new setting in the "HTTP/3 Settings" registry ([HTTP3]).¶
| Setting Name | Value | Specification | Default |
|---|---|---|---|
| SETTINGS_ENABLE_CONNECT_PROTOCOL | 0x08 | This document | 0 |
TODO acknowledge.¶