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Re: ACTION-211 Draft text on how user agents must obtain consent to turn on a DNT signal

From: Ed Felten <ed@felten.com>
Date: Wed, 13 Jun 2012 10:09:08 -0700
Message-ID: <CANZBoGj-QXT0CstN3WiYLu294Jcmr3v=Uq1JbcqPjrSrgQ5+Kw@mail.gmail.com>
To: Shane Wiley <wileys@yahoo-inc.com>
Cc: Peter Cranstone <peter.cranstone@gmail.com>, Justin Brookman <justin@cdt.org>, "public-tracking@w3.org" <public-tracking@w3.org>
Shane,

Does "invalid UA" mean the same thing as "non-compliant UA"?   Or do you
mean "invalid" to be broader somehow?


On Wednesday, June 13, 2012, Shane Wiley wrote:

> Peter,****
>
> ** **
>
> That is up to the Server to make the choice to reply with an “Invalid UA”
> response and provide users with options from that point forward.  That
> Server will need to defend its position to consumers, advocates, etc. but
> should absolutely have that option.  Whatever overhead that comes that
> choice (PR defense, coding overhead, etc.) is the Servers to manage from
> that point forward.****
>
> ** **
>
> - Shane****
>
> ** **
>
> *From:* Peter Cranstone [mailto:peter.cranstone@gmail.com<javascript:_e({}, 'cvml', 'peter.cranstone@gmail.com');>]
>
> *Sent:* Wednesday, June 13, 2012 11:04 AM
> *To:* Shane Wiley; Justin Brookman; public-tracking@w3.org<javascript:_e({}, 'cvml', 'public-tracking@w3.org');>
> *Subject:* Re: ACTION-211 Draft text on how user agents must obtain
> consent to turn on a DNT signal****
>
> ** **
>
> Shane,****
>
> ** **
>
> The server does need to know because it's about to reject it. MSIE is non
> compliant in only ONE aspect – it sets the flag by default. In EVERY other
> aspect it is COMPLIANT because the user can change that preference.****
>
> ** **
>
> So in essence you're saying that if you see a UA of MSIE 10 you're going
> to reject it immediately and send back a 400 message. Get ready to start
> writing lots of scripts or modules (your preference) ****
>
>  ****
>
>
> Peter
> ___________________________________
> Peter J. Cranstone
> 720.663.1752****
>
> ** **
>
> *From: *Shane Wiley <wileys@yahoo-inc.com>
> *Date: *Wednesday, June 13, 2012 8:58 AM
> *To: *Peter Cranstone <peter.cranstone@gmail.com>, Justin Brookman <
> justin@cdt.org>, W3 Tracking <public-tracking@w3.org>
> *Subject: *RE: ACTION-211 Draft text on how user agents must obtain
> consent to turn on a DNT signal****
>
> ** **
>
> Peter,****
>
>  ****
>
> The Server doesn’t need to know – I believe that’s the point you’re
> missing.  The user installed a non-compliant UA and the Server will respond
> as such.  The user then has multiple options to exercise their choice but
> continued use of that specific UA to communicate DNT is NOT one of them.**
> **
>
>  ****
>
> - Shane****
>
>  ****
>
> *From:* Peter Cranstone [mailto:peter.crans
>
>
Received on Wednesday, 13 June 2012 17:09:37 UTC

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