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Re: [XHR] i18n comment 6: combining of multiple Accept-Language headers

From: Addison Phillips <addison@yahoo-inc.com>
Date: Thu, 29 Nov 2007 11:31:14 -0800
Message-ID: <474F1382.9040906@yahoo-inc.com>
To: Anne van Kesteren <annevk@opera.com>
CC: public-webapi@w3.org, public-i18n-core@w3.org

Anne van Kesteren wrote:
> 
> On Thu, 29 Nov 2007 17:12:07 +0100, <addison@yahoo-inc.com> wrote:
>> -- 
>> If the header argument is in the list of request headers either use 
>> multiple headers, combine the values or usea combination of those
>> -- 
>>
>> It then gives and example in which the headers are combined 
>> algorithmically (basically, concatenating them). However, some 
>> headers, such as Accept-Language, use q-weights and other structure 
>> and this approach may not work acceptably in those cases. Perhaps 
>> provide some guidance on these cases?
> 
> Correct. The method does not take HTTP semantics into account. I haven't 
> had feedback so far that this is actually problematic, apart from that 
> it isn't very nice. (If in due course authors do start to complain about 
> this it is something that could be addressed by XMLHttpRequest Level 3.)
> 
> 

Wouldn't this qualify as "feedback"? :-)

I realize that this may not be a widely used feature of XHR. But 
implementers should probably be aware that, since the setRequestHeader 
method sets HTTP headers, concatenation is not always sufficient for 
compliance with RFC 2616, etc.

Addison

-- 
Addison Phillips
Globalization Architect -- Yahoo! Inc.
Chair -- W3C Internationalization Core WG

Internationalization is an architecture.
It is not a feature.
Received on Thursday, 29 November 2007 19:32:10 GMT

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