Edit comment LC-2009 for Mobile Web Best Practices Working Group

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Comment LC-2009

Comment Shortname:

Commenter: JOSE MANUEL CANTERA FONSECA <jmcf@tid.es>

Message-id:

Section of the document concerned:

[Free text description]Document as a wholeContent Transformation Guidelines 1.0 Abstract Status of this Document Table of Contents Appendices 1 Introduction (Non-Normative) 1.1 Purpose 1.2 Audience 1.3 Scope 1.4 Summary of Requirements 2 Terminology (Normative) 2.1 Types of Proxy "A transparent proxy is a proxy that does not modify the req... A non-transparent proxy is a proxy that modifies the request... 2.2 Types of Transformation Restructuring content is a process whereby the original layo... Recoding content is a process whereby the layout of the cont... Optimizing content includes removing redundant white space,... 3 Conformance (Normative) 3.1 Classes of Product 3.2 Normative and Informative Parts 3.3 Normative Language for Conformance Requirements 3.4 Content Deployment Conformance 3.5 Transformation Deployment Conformance 4 Behavior of Components (Normative) 4.1 Proxy Forwarding of Request 4.1.1 Applicable HTTP Methods 4.1.2 no-transform directive in Request 4.1.3 Treatment of Requesters that are not Web browsers 4.1.4 Serving Cached Responses 4.1.5 Alteration of HTTP Header Values In this section, the concept of "Web site" is used (rather t... 4.1.5.1 Content Tasting 4.1.5.2 Avoiding "Request Unacceptable" Responses 4.1.5.3 User Selection of Restructured Experience 4.1.5.4 Sequence of Requests 4.1.5.5 Original Headers 4.1.6 Additional HTTP Headers 4.1.6.1 Proxy Treatment of Via Header 4.2 Server Response to Proxy 4.2.1 Use of HTTP 406 Status 4.2.2 Server Origination of Cache-Control: no-transform Including a Cache-Control: no-transform directive can disrup... 4.2.3 Varying Representations 4.2.3.1 Use of Vary HTTP Header 4.2.3.2 Indication of Intended Presentation Media Type of Representation 4.3 Proxy Forwarding of Response to User Agent 4.3.1 Receipt of Cache-Control: no-transform 4.3.2 Receipt of Warning: 214 Transformation Applied 4.3.3 Server Rejection of HTTP Request 4.3.4 Receipt of Vary HTTP Header 4.3.5 Link to "handheld" Representation 4.3.6 Proxy Decision to Transform 4.3.6.1 Alteration of Response 4.3.6.2 HTTPS Link Re-writing 5 Testing (Normative) A References B Example Transformation Interactions (Non-Normative) B.1 Basic Content Tasting by Proxy B.2 Optimization based on Previous Server Interaction B.3 Optimization based on Previous Server Interaction, Server has Changed its Operation B.4 Server Response Indicating that this Representation is Intended for the Target Device B.5 Server Response Indicating that another Representation is Intended for the Target Device C Applicability to Transforming Solutions which are Out of Scope (Non-Normative) D Scope for Future Work (Non-Normative) D.1 POWDER D.2 link HTTP Header D.3 Sources of Device Information D.4 Inter Proxy Communication D.5 Amendment to and Refinement of HTTP E Administrative Arrangements (Non-Normative) F Acknowledgments (Non-Normative)
or

Refinement of the section concerned:

Status:

open proposal pending resolved_yes resolved_no resolved_partial other assigned to Nobody

Type: substantive editorial typo question general comment undefined

Resolution status:

Response drafted Resolution implemented Reply sent to commenter

Response status:

No response from Commenter yet Commenter approved disposition Commenter objected to disposition
Commenter's response (URI):

Comment:

4.2.3.2

" In HTML content it should indicate the medium for which the representation is intended by including a link element identifying in its media attribute the target presentation media types of this representation and setting the href attribute to a valid local reference (i.e. use the fragment identifier (see [RFC 3986]<http://www.w3.org/TR/2008/WD-ct-guidelines-20080801/#ref-rfc-3986> section 3.5<http://www.tools.ietf.org/html/rfc3986.html#section-3.5>) added to the URI of the document being served to point to a valid target within the document)."

Why it has to be a fragment identifier within the page? If you do so, strictly speaking you are saying that an specific fragment of the current page is an alternative representation for the media handheld for the current page. That's not true, as the whole page is such representation.

Proposed Amendment:


As per RFC 3986 section 4.4 [Amended: was RFC 1808 initially] an empty relative URI href="" resolves to complete base URL, so it is suggested to use this mechanism to point to the current resource

<link rel="alternate" media="handheld" type="text/html" href="" />

(another option is to suggest the usage of the URI that points to the current resource. )

Best Regards

Related issues: (space separated ids)

WG Notes: See: http://www.w3.org/2008/10/20-bpwg-minutes.html#item16 Final resolution: - re. LC-2009, resolve yes, acknowledge RFC3986 section 4.4 and remove the part on fragment identifiers

Resolution: We agree and have reworded this section (now to be found in Appendix H.1.4.2) substantially based on your comment. We now refer to the "Same-Document Reference" definition in RFC3986. The updated text is available at: http://www.w3.org/TR/2009/WD-ct-guidelines-20091006/Overview.html#sec-use-of-link-element

(Please make sure the resolution is adapted for public consumption)