ECMAScript Media Types Updates
draft-ietf-dispatch-javascript-mjs-05

Document Type Active Internet-Draft (dispatch WG)
Last updated 2019-10-31
Replaces draft-bfarias-javascript-mjs
Stream IETF
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DISPATCH                                                       M. Borins
Internet-Draft                                                 M. Bynens
Updates: 4329 (if approved)                                       Google
Intended status: Informational                                 M. Miller
Expires: May 3, 2020                                             Mozilla
                                                               B. Farias
                                                        October 31, 2019

                     ECMAScript Media Types Updates
                 draft-ietf-dispatch-javascript-mjs-05

Abstract

   This document proposes updates to the ECMAScript media types,
   superseding the existing registrations for "application/javascript"
   and "text/javascript" by adding an additional extension and removing
   usage warnings.  This document updates RFC4329, "Scripting Media
   Types".

Status of This Memo

   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
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   This Internet-Draft will expire on May 3, 2020.

Copyright Notice

   Copyright (c) 2019 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

Borins, et al.             Expires May 3, 2020                  [Page 1]
Internet-Draft       ECMAScript Media Types Updates         October 2019

   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.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Background  . . . . . . . . . . . . . . . . . . . . . . . . .   2
   3.  Security Considerations . . . . . . . . . . . . . . . . . . .   3
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   3
     4.1.  Common Javascript Media Types . . . . . . . . . . . . . .   4
       4.1.1.  text/javascript . . . . . . . . . . . . . . . . . . .   4
     4.2.  Historic Javascript Media Types . . . . . . . . . . . . .   5
       4.2.1.  application/ecmascript  . . . . . . . . . . . . . . .   5
       4.2.2.  application/javascript  . . . . . . . . . . . . . . .   6
       4.2.3.  application/x-ecmascript  . . . . . . . . . . . . . .   7
       4.2.4.  application/x-javascript  . . . . . . . . . . . . . .   8
       4.2.5.  text/ecmascript . . . . . . . . . . . . . . . . . . .   9
       4.2.6.  text/javascript1.0  . . . . . . . . . . . . . . . . .  10
       4.2.7.  text/javascript1.1  . . . . . . . . . . . . . . . . .  11
       4.2.8.  text/javascript1.2  . . . . . . . . . . . . . . . . .  12
       4.2.9.  text/javascript1.3  . . . . . . . . . . . . . . . . .  13
       4.2.10. text/javascript1.4  . . . . . . . . . . . . . . . . .  14
       4.2.11. text/javascript1.5  . . . . . . . . . . . . . . . . .  15
       4.2.12. text/jscript  . . . . . . . . . . . . . . . . . . . .  16
       4.2.13. text/livescript . . . . . . . . . . . . . . . . . . .  17
       4.2.14. text/x-ecmascript . . . . . . . . . . . . . . . . . .  18
       4.2.15. text/x-javascript . . . . . . . . . . . . . . . . . .  19
   5.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  20
     5.1.  Normative References  . . . . . . . . . . . . . . . . . .  20
     5.2.  Informative References  . . . . . . . . . . . . . . . . .  20
   Appendix A.  Acknowledgements . . . . . . . . . . . . . . . . . .  20
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  20

1.  Introduction

   This document updates the existing media types for the ECMAScript
   programming language.  It supersedes the media types registrations in
   [RFC4329] for "application/javascript" and "text/javascript".

2.  Background

   In order to formalize support for modular programs, [ECMA-262]
   (starting with 6th Edition) defines two top-level goal symbols (or
   roots to the abstract syntax tree) for the ECMAScript grammar: Module
   and Script.  The Script goal represents the more stand-alone
   structure where the code executes in the global scope, while the
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