- From: JC Cannon <jccannon@microsoft.com>
- Date: Mon, 21 May 2012 15:23:32 +0000
- To: David Singer <singer@apple.com>, Rigo Wenning <rigo@w3.org>
- CC: "Roy T. Fielding" <fielding@gbiv.com>, "public-tracking@w3.org Group WG" <public-tracking@w3.org>
I would expect that DNT;0 would only be sent to domains that have an exception, not all the time. Of course that is dependent on browser implementation. JC -----Original Message----- From: David Singer [mailto:singer@apple.com] Sent: Monday, May 21, 2012 7:20 AM To: Rigo Wenning Cc: Roy T. Fielding; public-tracking@w3.org Group WG Subject: Re: tracking-ISSUE-147: Transporting Consent via the Exception / DNT mechanisms [Global Considerations] On May 21, 2012, at 16:17 , Rigo Wenning wrote: > David, > > Roy is right in saying that we currently do not define what DNT;0 means. > From a US perspective, falling back to the legal default means > everything is permitted. Falling back in the EU would probably be as > restrictive as DNT;1 or even more so. > > Consequently I think we should add a section to describe things that > _at least_ allowed if DNT;0 is sent. This way we do not have to define > tracking entirely, but we state that we expect _at least_ that certain > things must be permitted and are expected to occur. > > This would also somewhat resolve the "informed consent" issue Roy was > raising. > > Rigo OK, got it. There is still a formal difference between "no header sent, our spec. does not apply" and "dnt:0 sent, our spec. defines what that means"; however, it may not be a practical difference > On Monday 21 May 2012 14:43:29 David Singer wrote: >> C: I send DNT:0; I am explicitly stating that I grant you an >> exception and can track me. >> >> At the moment, after an exception grant by the user, we switch from >> DNT:1 to DNT:0, and so I have no way of saying "I ask everyone else >> not to track me, but I am not asking you anything." Instead, we say >> "I am asking you to comply with the behavior defined for DNT:0" >> (which might well be different from no header). >> >> Whether this matters or not, I don't know, but we are a little >> confused, in that the converse of DNT:1 is the absence of a header, >> not DNT:0, in some cases. David Singer Multimedia and Software Standards, Apple Inc.
Received on Monday, 21 May 2012 15:24:49 UTC