Agree with Nick. On Feb 1, 2012, at 6:40 AM, Nicholas Doty wrote: > Apologies if I'm repeating questions from the f2f but I'm still uncertain about the use cases for this proposal. > > What would a server/publisher do differently if it received DNT:null than if it didn't receive a DNT header at all? Why would a user wish to broadcast their user agent's ability when they hadn't yet expressed a preference? > > —Nick > > On Jan 31, 2012, at 1:33 AM, Tracking Protection Working Group Issue Tracker wrote: >> tracking-ISSUE-121: Should a user agent advertise its DNT ability by, e.g., sending DNT;NULL [Tracking Preference Expression (DNT)] >> >> http://www.w3.org/2011/tracking-protection/track/issues/121 >> >> Raised by: Shane Wiley >> On product: Tracking Preference Expression (DNT) >> >> 2012-01-30 Shane said: >> >> <non-normative> >> As many User Agents may fall outside of the large web browser vendors, such as Apps, Toolbars, Custom Web Kits, etc., it will be helpful for publishers to receive a signal that a User Agent supports DNT even when a user has not yet provided a preference. >> >> <normative> >> User Agents SHOULD provide a null DNT signal if the user has not yet provided a preference and the User Agent supports DNT. >> As many User Agents may fall outside of the large web browser vendors, such as Apps, Toolbars, Custom Web Kits, etc., it will be helpful for publishers to receive a signal that a User Agent supports DNT even when a user has not yet provided a preference. >> >> <normative> >> User Agents SHOULD provide a null DNT signal if the user has not yet provided a preference and the User Agent supports DNT. > ---------- John M. Simpson Consumer Advocate Consumer Watchdog 1750 Ocean Park Blvd. ,Suite 200 Santa Monica, CA,90405 Tel: 310-392-7041 Cell: 310-292-1902 www.ConsumerWatchdog.org john@consumerwatchdog.orgReceived on Wednesday, 1 February 2012 21:08:36 GMT
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