The "about" URI Scheme
draft-ietf-appsawg-about-uri-scheme-06

The information below is for an old version of the document
Document Type Active Internet-Draft (appsawg WG)
Last updated 2012-06-05 (latest revision 2012-06-03)
Replaces draft-holsten-about-uri-scheme
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Intended RFC status Informational
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Stream WG state Submitted to IESG for Publication
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Document shepherd Jiankang Yao
Shepherd write-up Show (last changed 2012-04-18)
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Has enough positions to pass.
Responsible AD Barry Leiba
IESG note Jiankang Yao (yaojk@cnnic.cn) is the Document Shepherd.
Send notices to appsawg-chairs@tools.ietf.org, draft-ietf-appsawg-about-uri-scheme@tools.ietf.org, yaojk@cnnic.cn
Applications Area WG (APPSAWG)                         S. Moonesamy, Ed.
Internet-Draft                                                          
Intended Status: Informational                                          
Expires: December 5, 2012                                   June 3, 2012

                         The "about" URI Scheme
                 draft-ietf-appsawg-about-uri-scheme-06

Abstract

   This document describes the "about" URI scheme, which is widely used
   by web browsers and some other applications to designate access to
   their internal resources, such as settings, application information,
   hidden built-in functionality, and so on.

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   Copyright (c) 2012 IETF Trust and the persons identified as the
   document authors. All rights reserved.

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   include Simplified BSD License text as described in Section 4.e of
 

Moonesamy               Expires December 5, 2012                [Page 1]
INTERNET DRAFT           The "about" URI Scheme             June 3, 2012

   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1. Introduction  . . . . . . . . . . . . . . . . . . . . . . . . .  2
   2. URI Scheme Specification  . . . . . . . . . . . . . . . . . . .  2
     2.1. URI Scheme Syntax . . . . . . . . . . . . . . . . . . . . .  2
     2.2. URI Scheme Semantics  . . . . . . . . . . . . . . . . . . .  3
       2.2.1. Well-known "about" URIs . . . . . . . . . . . . . . . .  3
     2.3. Encoding Considerations . . . . . . . . . . . . . . . . . .  3
   3. "about:blank" . . . . . . . . . . . . . . . . . . . . . . . . .  3
   4. Security Considerations . . . . . . . . . . . . . . . . . . . .  3
   5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . .  4
     5.1. URI Scheme Registration . . . . . . . . . . . . . . . . . .  4
     5.2. A Registry for Well-known Tokens  . . . . . . . . . . . . .  4
       5.2.1. Registration procedure  . . . . . . . . . . . . . . . .  5
   6. References  . . . . . . . . . . . . . . . . . . . . . . . . . .  5
     6.1. Normative References  . . . . . . . . . . . . . . . . . . .  5
     6.2. Informative References  . . . . . . . . . . . . . . . . . .  6
   Appendix A.  Acknowledgments . . . . . . . . . . . . . . . . . . .  6
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . .  6

1. Introduction

   This document describes the "about" Uniform Resource Identifier (URI)
   scheme.  The "about" URI scheme is currently widely used by Web
   browsers to designate access to their internal resources such as
   settings, application information, so called "Easter eggs" (i.e.
   hidden feature or joke in an application).

2. URI Scheme Specification

2.1. URI Scheme Syntax

   The "about" URI syntactically conforms to the <about-uri> rule below,
   expressed using Augmented Backus-Naur Form (ABNF) [RFC5234]:

     about-uri = "about:" about-token [ about-query ] [ about-fragment ]
     about-token = *pchar     
     about-query = "?" query
     about-fragment = "#" fragment
     pchar     = <as specified in RFC 3986, Appendix A>
     query     = <as specified in RFC 3986, Appendix A>
     fragment  = <as specified in RFC 3986, Appendix A>

   In terms of RFC 3986, <about-token> part corresponds to <hier-part>,
   <about-query> to the query component and <about-fragment> to the
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