ISSUE-24

contentTypeOverride-24

Can a specification include rules for overriding HTTPcontent type parameters?

State:

OPEN

Product:

HTML 5 review

Raised by:

Tim Berners-Lee

Opened on:

2002-06-14

Description:

Rank: high

Shepherd: Larry Masinter

Deliverables:
??? (note that there's something in Webarch about this, so we might need to do an update/erratum if we change our minds)

community: HTML WG, HTTP WG, Webmasters, Web authors, browser developers, extension developers

"agreed on 4 Dec 2003

    The 3 Dec 2003 Editor's Draft of the Architecture Document accurately represents the TAG's position on the authoritative nature of server messages. "
http://www.w3.org/2001/tag/issues.html#contentTypeOverride-24

"For me this questions depends on whether the document type is a human-readable hypertext document, when generic hypertext xml tools would benefit from knowing what is a link, and whether significance of the URI in question is a hypertext link or something different.

Maybe a compromise is to only allow the link to specify the content-type when the server is FTP (or something else with no content-type control) or the HTTP server returns text/plain or octet-steam, which seem to be used for "don't know" types."
 -- TimBL http://lists.w3.org/Archives/Public/www-tag/2002Jun/0116.html

On 21 May 2009, we agreed not to schedule discussion of this issue until Larry makes progress on ACTION-261.  We also agreed Noah would make preliminary inquiries with Mark Nottingham and Lisa Dessault per ACTION-257 to see whether there are dates between now and mid-July when they might join us on a teleconference.

Related Actions Items:

• ACTION-172 on Henry S. Thompson to Craft a message to www-tag announcing reopenning of contentTypeOverride-24 ( - due 2008-09-03, closed
• ACTION-233 on Larry Masinter to Report back from IETF/HTML liason meeting in March regarding MIME type override - due 2009-03-11, closed
• ACTION-261 on Larry Masinter to Followup with Mark Nottingham and Lisa D. regarding Adam Barth's sniffing draft - due 2009-08-01, closed
• ACTION-257 on Noah Mendelsohn to invite Mark Not or Lisa D to revisit progress in IETF/HTML liaison on content sniffing - due 2009-09-04, closed
• ACTION-309 on Henry S. Thompson to S. to bring back proposed TAG pushback on sniffing and HTTP bis draft http://trac.tools.ietf.org/wg/httpbis/trac/export/663/draft-ietf-httpbis/latest/p3-payload.html, or his recommendation that we leave it alone - due 2009-10-13, open
• ACTION-308 on John Kemp to Propose updates to Authoritative Metadata and Self-Describing Web to acknowledge the reality of sniffing, due 2009-10-20 - due 2009-10-20, open

Related emails:

1. please update overdue actions as input to Dec f2f agenda (from connolly@w3.org on 2009-11-09)
2. Tag F2F Session on Content-type sniffing (from noah_mendelsohn@us.ibm.com on 2009-09-11)
3. Re: Draft minutes of 2009-08-27 TAG weekly (from noah_mendelsohn@us.ibm.com on 2009-09-02)
4. Draft minutes of 2009-08-27 TAG weekly (from jar@creativecommons.org on 2009-09-01)
5. Re: W3C TAG interest in Content-type 'sniffing' (from lisa.dusseault@gmail.com on 2009-09-01)
6. Re: W3C TAG interest in Content-type 'sniffing' (from noah_mendelsohn@us.ibm.com on 2009-09-01)
7. Re: W3C TAG interest in Content-type 'sniffing' (from noah_mendelsohn@us.ibm.com on 2009-09-01)
8. Re: W3C TAG interest in Content-type 'sniffing' (from mnot@mnot.net on 2009-09-01)
9. Re: W3C TAG interest in Content-type 'sniffing' (from lisa.dusseault@gmail.com on 2009-08-31)
10. Re: W3C TAG interest in Content-type 'sniffing' (from mnot@mnot.net on 2009-08-31)
11. W3C TAG interest in Content-type 'sniffing' (from noah_mendelsohn@us.ibm.com on 2009-08-28)
12. Re: stability of content type sniffing algorithm? contentTypeOverride-24 / issue-24 (from mnot@mnot.net on 2009-06-05)
13. stability of content type sniffing algorithm? contentTypeOverride-24 / issue-24 (from connolly@w3.org on 2009-05-28)
14. Agenda for TAG teleconference of 28 May 2009 (from noah_mendelsohn@us.ibm.com on 2009-05-27)
15. Content sniffing and contacts with Mark Nottingham and Lisa Dusseult (from noah_mendelsohn@us.ibm.com on 2009-05-26)
16. Draft minutes of TAG teleconference of 21 May 2009 (from noah_mendelsohn@us.ibm.com on 2009-05-26)
17. RE: [ISSUE-27] What are chances of progress on ACTION-265 in time for the 21 May TAG Teleconference (also ISSUE-24) (from noah_mendelsohn@us.ibm.com on 2009-05-21)
18. RE: [ISSUE-27] What are chances of progress on ACTION-265 in time for the 21 May TAG Teleconference (also ISSUE-24) (from masinter@adobe.com on 2009-05-20)
19. Agenda for 21 May 2009 TAG Teleconference and Start of F2F Agenda Planning (from noah_mendelsohn@us.ibm.com on 2009-05-19)
20. Agenda for TAG teleconference of 7 May 2009 (from noah_mendelsohn@us.ibm.com on 2009-05-05)
21. Agenda for TAG teleconference of 23 April 2009 (from noah_mendelsohn@us.ibm.com on 2009-04-16)
22. Agenda for TAG teleconference of 16 April 2009 (from noah_mendelsohn@us.ibm.com on 2009-04-15)
23. Re: TAG telcon of 2009-04-09: Draft minutes (from noah_mendelsohn@us.ibm.com on 2009-04-14)
24. Re: TAG telcon of 2009-04-09: Draft minutes (from noah_mendelsohn@us.ibm.com on 2009-04-13)
25. Re: TAG telcon of 2009-04-09: Draft minutes (from jar@creativecommons.org on 2009-04-13)
26. Re: TAG telcon of 2009-04-09: Draft minutes (from noah_mendelsohn@us.ibm.com on 2009-04-13)
27. Agenda for TAG Teleconference of 9 April 2009 (from noah_mendelsohn@us.ibm.com on 2009-04-07)
28. Approved minutes of the TAG F2F of 3-5 March 2009 (from noah_mendelsohn@us.ibm.com on 2009-04-02)
29. Setting TAG Priorities - Review of discussion and planning to date (from noah_mendelsohn@us.ibm.com on 2009-03-22)
30. RE: Agenda for TAG teleconference of 12 March 2009 (from masinter@adobe.com on 2009-03-11)
31. RE: Agenda for TAG teleconference of 12 March 2009 (from masinter@adobe.com on 2009-03-10)
32. Agenda for TAG teleconference of 12 March 2009 (from noah_mendelsohn@us.ibm.com on 2009-03-10)
33. Re: 'Content-Type Processing Model' draft 9 Jan (ISSUE-24 contentTypeOverride-24) (from noah_mendelsohn@us.ibm.com on 2009-03-02)
34. Agenda for TAG Face-to-Face Meeting, 3-5 March 2009 (Redwood Shores, CA) (from noah_mendelsohn@us.ibm.com on 2009-02-25)
35. Re: 'Content-Type Processing Model' draft 9 Jan (ISSUE-24 contentTypeOverride-24) (from noah_mendelsohn@us.ibm.com on 2009-02-24)
36. Re: 'Content-Type Processing Model' draft 9 Jan (ISSUE-24 contentTypeOverride-24) (from connolly@w3.org on 2009-02-24)
37. 'Content-Type Processing Model' draft 9 Jan (ISSUE-24 contentTypeOverride-24) (from connolly@w3.org on 2009-02-24)
38. TAG Telcn Agenda, 6th Nov 2008: Content Transformation Guidelines; urnsAndRegistries-50; Webarch and WS; tagSoupIntegration-54; uriBasedPackageAccess-61; TPAC Followup; F2F Planning. (from skw@hp.com on 2008-11-05)
39. Agenda Draft for 6th Nov (was RE: TAG Tecon 6th Nov: Request for Agenda Items.) (from skw@hp.com on 2008-11-04)
40. Re: Draft agenda for TAG telcon 16th Sept 2008 available (from noah_mendelsohn@us.ibm.com on 2008-09-02)
41. Draft agenda for TAG telcon 16th Sept 2008 available (from skw@hp.com on 2008-09-02)
42. TAG 'back-to-school' Telcon Agenda: 28th Aug 2008: Review Requests; F2F Agenda; UrnsAndRegistries-50; passwordsInTheClear-52; contentTypeOverride-24; tagSoupIntegration-54 (from skw@hp.com on 2008-08-28)
43. Initial Draft agenda for 28th Aug TAG telcon. (from skw@hp.com on 2008-08-26)
44. Draft minutes from TAG telcon of 2008-07-24, plain text (from ht@inf.ed.ac.uk (Henry S. Thompson) on 2008-07-25)
45. TAG Telcon Agenda for 24th July 2008: contentTypeOverride-24; tagsoupIntegration-54; UrnsAndRegistries-50 (from skw@hp.com on 2008-07-23)
46. Draft agenda for TAG Telcon 24th July 2008 (from skw@hp.com on 2008-07-22)
47. TAG Telcon cancelled this week (was RE: TAG Weekly Telcon Agenda: 17th July 2008: contentTypeOverride-24; tagSoupIntegration-54; urnsAndregistries-50) (from skw@hp.com on 2008-07-17)
48. TAG Weekly Telcon Agenda: 17th July 2008: contentTypeOverride-24; tagSoupIntegration-54; urnsAndregistries-50 (from skw@hp.com on 2008-07-16)
49. Draft agenda fro Thursdays TAG call (17th July) (from skw@hp.com on 2008-07-15)
50. RE: Draft minutes of TAG telecon of 10 July 2008 (from Misha.Wolf@thomsonreuters.com on 2008-07-14)
51. Draft minutes of TAG telecon of 10 July 2008 (from jar@creativecommons.org on 2008-07-11)
52. TAG Telcon Agenda for 10th July 2008: UrnsAndRegistries-50; contentTypeOverride-24 (from skw@hp.com on 2008-07-09)
53. Draft Telcon Agenda for 10th July available for review. (from skw@hp.com on 2008-07-08)
54. RE: TAG Telcon Agenda for 31st January 2008: 2008 F2F Schedule; tagSoupIntegration-54; contentTypeOverride-24;passwordsInTheClear-52;Vancouver F2F. (from skw@hp.com on 2008-01-30)
55. Re: TAG Telcon Agenda for 31st January 2008: 2008 F2F Schedule; tagSoupIntegration-54; contentTypeOverride-24;passwordsInTheClear-52;Vancouver F2F. (from ashok.malhotra@oracle.com on 2008-01-30)
56. TAG Telcon Agenda for 31st January 2008: 2008 F2F Schedule; tagSoupIntegration-54; contentTypeOverride-24;passwordsInTheClear-52;Vancouver F2F. (from skw@hp.com on 2008-01-30)
57. Re: ISSUE-24: A compromise on authoritative metadata using Accept? (from distobj@acm.org on 2007-09-14)
58. RE: ISSUE-24: A compromise on authoritative metadata using Accept? (from noah_mendelsohn@us.ibm.com on 2007-09-14)
59. RE: ISSUE-24: A compromise on authoritative metadata using Accept? (from rhys@volantis.com on 2007-09-14)
60. ISSUE-24: A compromise on authoritative metadata using Accept? (from noah_mendelsohn@us.ibm.com on 2007-09-14)
61. minutes TAG weekly 13 Sep for review: contentTypeOverride-24, XMLVersioning-41 (from connolly@w3.org on 2007-09-13)
62. TAG Telcon Agenda: 13th September 2007: [XMLVersioning-41; UrnsAndRegistries-50; contenttypeOverride-24; abbreviatedURIs-56] (from skw@hp.com on 2007-09-11)
63. Minutes of 23 February 2004 TAG Teleconference (from on 2004-02-23)
64. Minutes of 26 January 2004 TAG teleconference (from on 2004-01-26)
65. Minutes of 15 December 2003 TAG teleconference (from on 2003-12-15)
66. Minutes of 4 December 2003 TAG teleconference (from on 2003-12-04)
67. Minutes of 6-8 October 2003 TAG face-to-face meeting in Bristol (from on 2003-10-08)
68. Minutes of 6-8 October 2003 TAG face-to-face meeting in Bristol (from on 2003-10-08)
69. Minutes of 7 July 2003 TAG teleconference (from on 2003-07-07)
70. Minutes of 30 June 2003 TAG teleconference (from on 2003-06-30)
71. Minutes of 23 June 2003 TAG teleconference (from on 2003-06-23)
72. Minutes of 16 June 2003 TAG teleconference (from on 2003-06-16)
73. Minutes of 12 May 2003 TAG teleconference (from on 2003-05-12)
74. Minutes of 5 May 2003 TAG teleconference (from on 2003-05-05)
75. Minutes of 7 Apr 2003 TAG teleconference (from on 2003-04-07)
76. Minutes of 24 Mar 2003 TAG teleconference (from on 2003-03-24)
77. Minutes of 6-7 Feb 2003 TAG ftf meeting (from on 2003-02-06)
78. Minutes of 4 December 2003 TAG teleconference (from on 2002-12-05)
79. Minutes of 22 July 2002 TAG teleconference (from on 2002-07-22)
80. Bad practice: Overriding HTTP content-type with a URI reference (from Tim Berners-Lee <timbl@w3.org> on 2002-06-14)

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