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Re: ISSUE-88 - Change proposal (new update)

From: Roy T. Fielding <fielding@gbiv.com>
Date: Fri, 7 May 2010 15:05:25 -0700
Cc: HTML WG <public-html@w3.org>, public-i18n-core@w3.org, www-international@w3.org
Message-Id: <9B37ED39-13ED-45E7-A8D0-B41298081715@gbiv.com>
To: Lachlan Hunt <lachlan.hunt@lachy.id.au>
On May 7, 2010, at 4:57 AM, Lachlan Hunt wrote:
> The layer violation is in HTML4, where it pretends that an http-equiv attribute in the markup intended for the client, is to be used by servers.  This has never been the case in practice.  The http-equiv and content attributes are used exclusively for client side processing in all instances where they are used for anything at all.

Why do I have to keep repeating this?  You are wrong.  It was used by WN.
It is still used by hundreds (if not thousands) of tools for the sake
of creating variance maps for content negotiation on servers like
Apache httpd.  It is even sometimes used to autogen mod_rewrite rules.

The only reason it is used less now than it was before is because most
CMS have migrated away from file-based artifacts and instead use storage
that maintains metadata as properties alongside the data.  That does
not change the meaning of the existing content that already includes
those metadata, nor does it change the meaning of the http-equiv attribute.

The http-equiv attribute was specifically designed to be orthogonal
to HTML.  HTML5 cannot change its definition.  HTML5 can deprecate the
attribute entirely, if that is desired, or it can choose to perform
backflips based on side-effects like the presence of some http-equiv
field.  Neither should result in a change to the definition of
existing content that uses the http-equiv attribute for the sake
in which it was originally defined.

> This is the case with http-equiv values of Content-Type, Content-Language, Default-Style and Refresh.  None of these values, when they occur in the meta element, are ever, nor should they ever be, used by server side processing.

Clearly, you are not a server developer.

Received on Friday, 7 May 2010 22:05:55 UTC

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