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RE: Regarding update of language declaration tests (I81NWG)

From: Leif Halvard Silli <xn--mlform-iua@xn--mlform-iua.no>
Date: Mon, 19 Apr 2010 19:00:46 +0200
To: www-international@w3.org
Message-ID: <20100419190046536588.25f87f74@xn--mlform-iua.no>
Leif Halvard Silli, Mon, 19 Apr 2010 18:17:05 +0200:
> Leif Halvard Silli, Mon, 19 Apr 2010 01:38:49 +0200:
>> CE Whitehead, Sun, 18 Apr 2010 19:19:15 -0400:
>>> Leif Halvard Silli,  Sat, 17 Apr 2010 02:45:31 +0200
>    …
>>> http://www.w3.org/International/questions/qa-no-language

     …
> Btw, the article states that 
> 
> ]]
> On the very rare occasion when the whole document is in an undefined 
> language it is better to just not declare the default language of the 
> document.
> [[
> 
> However, this advice does not help the slightest, if the user agent is 
> inheriting a language from the Content-Language HTTP header or the 
> HTTP-EQUIV meta element. 

Clarification: In response to bugs I filed because of my change 
proposal, [1] the HTML5 editor Ian Hickson told me that user agents 
only need to update. And then, if they update, they will be able to 
handle e.g. <html lang=""> correctly. However, the QA note from the 
I18N WG says that it is (usually) not correct to apply the empty 
lang="" on the root element in such cases. It is eventually better to 
not declare any language than to explicitly un-declare the language. 
And this also happens to be my own understanding.

For that reason, there should be a way - other than not using 
Content-Language (on the server side) - for making sure that the user 
agent does not inherit the language from Content-Language.

[1] 
http://www.w3.org/html/wg/wiki/ChangeProposals/lang_versus_contentLanguage

-- 
leif halvard silli
Received on Monday, 19 April 2010 17:01:21 GMT

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