Re: meaning of DNT 1 and DNT 0 when sent by user agents [ISSUE-78]

On Jan 20, 2012, at 6:14 PM, Nicholas Doty wrote:
>>> So what, then, does the first party get?  DNT:1 if any third party is getting DNT:1, else DNT:0 if all are getting DNT:0?  An average of the DNT values :-) DNT:0.7 ??!
>> 
>> The first party would get DNT 0 if an explicit exception exists.
>> That does not tell the first party which, if any, of its
>> subrequest partners might receive DNT 1 instead.  It only alerts
>> them to the potential.
> 
> I think the first party's receiving DNT:1 can signal to them that other parties may be receiving DNT:1. And the first party's JavaScript can use APIs to determine which third parties are receiving that signal, if that level of detail matters to them.

Also, I should note that Shane has suggested that we could use a different value (e.g. DNT:2) to express that a user is arriving with Do Not Track enabled, but some exceptions for third parties while browsing this domain.

This question is tracked by ISSUE-111: http://www.w3.org/2011/tracking-protection/track/issues/111

óNick

Received on Saturday, 21 January 2012 02:19:02 UTC