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Re: Multiple DNT Headers (ACTION-283, ISSUE-150)

From: Shane Wiley <wileys@yahoo-inc.com>
Date: Fri, 12 Oct 2012 13:55:57 -0700
To: Walter van Holst <walter.van.holst@xs4all.nl>
CC: "public-tracking@w3.org" <public-tracking@w3.org>
Message-ID: <9018CF0A-115B-4063-AB76-8377885CDC19@Overture.com>

As the DNT signal is sent with each header a user can change their mind between pages (intra-session).  This issue is focused on a single page request header carrying 2 or more conflicting DNT signals.

Sent from Shane's mobile

On Oct 12, 2012, at 1:13 PM, "Walter van Holst" <walter.van.holst@xs4all.nl> wrote:

> On 10/12/12 10:03 PM, Adrian Bateman wrote:
>> This subject has nothing to do with Internet Explorer. The question is
>> what happens if a broken user agent sends multiple DNT headers, which
>> violates the definition of the DNT header (which MUST only appear once).
>> Options include a) assume DNT:1; b) assume DNT:0; c) ignore all the
>> headers; d) if the multiple headers all have the same value use that
>> value otherwise one of the previous options; etc.
> Do I understand you correctly that this would mean that the user cannot
> change his or her mind mid-session?
> Regards,
> Walter
Received on Friday, 12 October 2012 20:57:19 UTC

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