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XHTML 1.0 served as text/html

From: Philip TAYLOR <P.Taylor@Rhul.Ac.Uk>
Date: Tue, 05 Dec 2006 18:19:40 +0000
Message-ID: <4575B83C.8090107@Rhul.Ac.Uk>
To: Ian Hickson <ian@hixie.ch>, david@djwhome.demon.co.uk, olivier Thereaux <ot@w3.org>, jkorpela@cs.tut.fi, karl@w3.org, link@pobox.com
CC: www-validator <www-validator@w3.org>, www-html@w3.org

Forgive the multiplicity of named recipients, but
I am very uncertain as to whom to address this :

There has been a fairly protracted discussion recently
concerning the pros and cons of serving XHTML documents
as text/html  or as application/xhtml+xml, but I was more
than a little surprised today to discover that when the
W3C (HTML) validator is asked to validate


it states that the (page) is "Valid XHTML 1.0 Transitional"
without issuing even a warning that it is being served as
text/html rather than application/xhtml+xml.  Now it is
clear from Section 5.1 of


that this is acceptable, yet


also states clearly that

	"application/xhtml+xml SHOULD be used for XHTML Family documents"

My question is therefore : should not the validator issue
a warning when this last guideline is ignored ?

Philip Taylor
Received on Tuesday, 5 December 2006 18:20:43 UTC

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