ISSUE-137: HTML+RDFa should normatively declare media types and describe how to identify relative to XHTML+RDFa 1.1

Media Type

HTML+RDFa should normatively declare media types and describe how to identify relative to XHTML+RDFa 1.1

State:
CLOSED
Product:
RDFa 1.1 in HTML5
Raised by:
Gregg Kellogg
Opened on:
2012-04-25
Description:
Raised on behalf of Alex Milowski.

The HTML+RDFa spec does not identify in a normative fashion the media types for which it applies. There is a passing reference to text/html, but no mention of application/xhtml+xml, which has lead to some confusion about processing of XHTML mode HTML5 documents relative to the XHTML+RDFa 1.1 spec.

I would clarify the HTML+RDFa 1.1 spec User Agent Conformance with something like the following:

[[[
HTML+RDFa documents should be labeled with Internet Media Types "text/html" or "application/xhtml+xml" as defined in [RFC3236].
]]]

There should also be an indication that XHTML mode HTML+RDFa 1.1 documents can be distinguished from XHTML+RDFa 1.1 documents by the lack of an XHTML DOCTYPE or @version.
Related Actions Items:
No related actions
Related emails:
  1. Re: Telecon Agenda - September 6th 2012, 1500 UTC (from gregg@greggkellogg.net on 2012-09-02)
  2. Telecon Agenda - September 6th 2012, 1500 UTC (from msporny@digitalbazaar.com on 2012-09-02)
  3. Re: ACTION-118 Status of ISSUE-137 (from ivan@w3.org on 2012-08-16)
  4. ACTION-118 Status of ISSUE-137 (from shane@aptest.com on 2012-08-16)
  5. Re: Telecon Agenda - May 10th 2012, 1500 UTC (from scorlosquet@gmail.com on 2012-05-10)
  6. Telecon Agenda - May 10th 2012, 1500 UTC (from msporny@digitalbazaar.com on 2012-05-09)
  7. Comment on ISSUE-126 (was Re: Telecon Agenda - May 3rd 2012, 1500 UTC) (from ivan@w3.org on 2012-05-03)
  8. Telecon Agenda - May 3rd 2012, 1500 UTC (from msporny@digitalbazaar.com on 2012-05-02)
  9. Re: The minor issues before the PR (from ivan@w3.org on 2012-05-01)
  10. The minor issues before the PR (from ivan@w3.org on 2012-05-01)
  11. Re: ISSUE-137 (Media Type): HTML+RDFa should normatively declare media types and describe how to identify relative to XHTML+RDFa 1.1 [RDFa 1.1 in HTML5] (from lindstream@gmail.com on 2012-04-26)
  12. Re: ISSUE-137 (Media Type): HTML+RDFa should normatively declare media types and describe how to identify relative to XHTML+RDFa 1.1 [RDFa 1.1 in HTML5] (from alex@milowski.com on 2012-04-26)
  13. Re: ISSUE-137 (Media Type): HTML+RDFa should normatively declare media types and describe how to identify relative to XHTML+RDFa 1.1 [RDFa 1.1 in HTML5] (from ivan@w3.org on 2012-04-26)
  14. Re: RDFa Lite and non-RDFa @rel values [Final Take?] (from lindstream@gmail.com on 2012-04-26)
  15. Re: ISSUE-137 (Media Type): HTML+RDFa should normatively declare media types and describe how to identify relative to XHTML+RDFa 1.1 [RDFa 1.1 in HTML5] (from alex@milowski.com on 2012-04-25)
  16. Re: ISSUE-137 (Media Type): HTML+RDFa should normatively declare media types and describe how to identify relative to XHTML+RDFa 1.1 [RDFa 1.1 in HTML5] (from gregg@greggkellogg.net on 2012-04-25)
  17. Re: ISSUE-137 (Media Type): HTML+RDFa should normatively declare media types and describe how to identify relative to XHTML+RDFa 1.1 [RDFa 1.1 in HTML5] (from alex@milowski.com on 2012-04-25)
  18. Re: ISSUE-137 (Media Type): HTML+RDFa should normatively declare media types and describe how to identify relative to XHTML+RDFa 1.1 [RDFa 1.1 in HTML5] (from alex@milowski.com on 2012-04-25)
  19. Re: RDFa Lite and non-RDFa @rel values [Final Take?] (from gregg@greggkellogg.net on 2012-04-25)
  20. ISSUE-137 (Media Type): HTML+RDFa should normatively declare media types and describe how to identify relative to XHTML+RDFa 1.1 [RDFa 1.1 in HTML5] (from sysbot+tracker@w3.org on 2012-04-25)

Related notes:

Other related emails:

http://lists.w3.org/Archives/Public/public-rdfa-wg/2012Apr/0115.html
http://lists.w3.org/Archives/Public/public-rdfa-wg/2012Apr/0116.html
http://lists.w3.org/Archives/Public/public-rdfa-wg/2012Apr/0119.html

Gregg Kellogg, 25 Apr 2012, 22:46:29

RESOLVED: Add normative text that specifies how to detect an XHTML+RDFa document in HTML+RDFa 1.1. The algorithm is to first, look at the Media Type and see that it's 'application/xhtml+xml'. Second, look at the DTD, if there is one - if it's one we have defined for XHTML1+RDFa 1.1 or XHTML1+RDFa 1.0, we use that. If that does not match, it is XHTML5. Place a warning in the spec stating that documents that don't contain a DTD, don't have @version, and are served as XHTML will default to XHTML5.

http://www.w3.org/2010/02/rdfa/meetings/2012-09-06#resolution_4

Manu Sporny, 1 Oct 2012, 00:08:34

revision 1.5
date: 2012-12-01 21:23:11 -0500; author: msporny; state: Exp; lines: +23 -2; commitid: hf2RjZju7GhgUAuw;
Implemented resolution to ISSUE-137.

Manu Sporny, 2 Dec 2012, 02:23:30

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