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Re: [xmlhttprequest] getResponseHeader() for invalid header

From: Maciej Stachowiak <mjs@apple.com>
Date: Fri, 7 Mar 2008 15:42:47 -0800
Cc: "Web API WG (public)" <public-webapi@w3.org>
Message-Id: <9240AC80-881C-4626-95A5-483ADFC161CC@apple.com>
To: Anne van Kesteren <annevk@opera.com>


On Mar 7, 2008, at 3:12 PM, Anne van Kesteren wrote:

> On Sat, 08 Mar 2008 00:06:02 +0100, Maciej Stachowiak  
> <mjs@apple.com> wrote:
>> On Mar 7, 2008, at 2:59 PM, Anne van Kesteren wrote:
>>> Currently getResponseHeader() returns the empty string for invalid  
>>> header names.  Would people object if I changed that to returning  
>>> null instead (basically making it equivalent to headers not part  
>>> of the response)? Thanks.
>>
>> What do current implementations do for these cases?
>
> I think three out of four return null for a non-existent header (IE  
> being the exception, iirc). Firefox and an internal version of Opera  
> also return null for invalid headers. (Although for Firefox it seems  
> to differ on based on whether the request has happened already or  
> something...)

In that case I think it makes sense to use null for both missing and  
invalid headers.

  - Maciej
Received on Friday, 7 March 2008 23:42:59 GMT

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