The "about" URI Scheme
draft-ietf-appsawg-about-uri-scheme-04

The information below is for an old version of the document
Document Type Active Internet-Draft (appsawg WG)
Last updated 2012-05-17 (latest revision 2012-03-26)
Replaces draft-holsten-about-uri-scheme
Stream IETF
Intended RFC status Proposed Standard
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Stream WG state Submitted to IESG for Publication
Document shepherd Jiankang Yao
Shepherd write-up Show (last changed 2012-04-18)
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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)                              L. Hunt, Ed.
Internet-Draft                                      Opera Software, ASA.
Intended Status: Standards Track                     M. Yevstifeyev, Ed.
Expires: September 22, 2012                               March 21, 2012

                         The "about" URI Scheme
                 draft-ietf-appsawg-about-uri-scheme-04

Abstract

   This document specifies 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.

Status of this Memo

   This Internet-Draft is submitted to IETF in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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Copyright and License Notice

   Copyright (c) 2012 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
   (http://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
 

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

Table of Contents

   1. Introduction  . . . . . . . . . . . . . . . . . . . . . . . . .  2
     1.1. Terminology . . . . . . . . . . . . . . . . . . . . . . . .  2
   2. URI Scheme Specification  . . . . . . . . . . . . . . . . . . .  3
     2.1. URI Scheme Syntax . . . . . . . . . . . . . . . . . . . . .  3
     2.2. URI Scheme Semantics  . . . . . . . . . . . . . . . . . . .  3
       2.2.1. Special-Purpose "about" URIs  . . . . . . . . . . . . .  3
     2.3. Encoding Considerations . . . . . . . . . . . . . . . . . .  4
   3. Security Considerations . . . . . . . . . . . . . . . . . . . .  4
   4. IANA Considerations . . . . . . . . . . . . . . . . . . . . . .  4
     4.1. URI Scheme Registration . . . . . . . . . . . . . . . . . .  4
     4.2. A Registry for Registered Tokens  . . . . . . . . . . . . .  5
   5. References  . . . . . . . . . . . . . . . . . . . . . . . . . .  6
     5.1. Normative References  . . . . . . . . . . . . . . . . . . .  6
     5.2. Informative References  . . . . . . . . . . . . . . . . . .  6
   Appendix A.  Acknowledgments . . . . . . . . . . . . . . . . . . .  6
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . .  7

1. Introduction

   This document specifies the "about" Uniform Resource Identifier (URI)
   scheme, that is currently widely used by Web browsers and some other
   applications 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), and so on.

   The concept of "about" URIs formed when applications did not have a
   "friendly" user interface, to enable access to the aforementioned
   resources by typing URIs into an address bar or similar feature. 
   They have however become commonplace in modern user applications.

   Given their current ubiquity, their absence from the URI scheme
   registry and lack of a defining document is conspicuous.  Therefore,
   this document provides a stable specification for the "about" URI
   scheme and registers it with IANA.

   Please consult RFC 3986 [RFC3986] for definition of generic URIs
   syntax and RFC 4395 [RFC4395] for description of registration process
   for new URI schemes.

1.1. Terminology

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
 

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