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Re: P3P and IE 6.0

From: Lorrie Cranor <lorrie@research.att.com>
Date: Tue, 14 Jan 2003 19:27:11 -0500
To: <PVenkatachalam@inautix.com>, <www-p3p-policy@w3.org>
Message-ID: <BA4A150F.68F9%lorrie@research.att.com>

On 1/14/03 10:02 AM, "PVenkatachalam@inautix.com"
<PVenkatachalam@inautix.com> wrote:

> Hello Folks,
> Just a few clarifications on Internet Explorer 6.0's Policy  & P3P.
> 1) Viewing Policy file with Proxy
>    During an implementation of P3P, I came across a problem where I was
>    not able to view my sites P3P Policy using IE6.0 if I connected
> through a proxy.
>    The scenario was, when I try to view the sites policy through IE
>    the IE sends a GET /w3c/p3p.xml which is rejected by the proxy server
> ( Microsoft ISA).
>    The proxy server rejects the request for authentication.
>    However, for a normal rejected http request ( i.e when retrieving a
> html page)
>    IE seems to send the GET request second time with the authentication
>    information.
>    But this kind of *repeat try* pattern is not followed when retreving
> the
>    Policy file by the IE6 policy window.
>    I was clueless of this issue until I ran a packet sniffer.
>    After this I tried a direct connection and things worked.
>    Is this a known issue ?

Yes this is a known issue.

> 2) P3P HTML Link Tag
>    This is regarding the policy reference link tag (present in the html)
> with IE6.
>    The issue I had was I had created a customized directory where I
> placed the
>    policy reference file. However IE always tried to pick it up from the
> /w3c/p3p.xml.
>    Any idea why IE doesnt look in the customised policy reference
> location ?

IE6 (and all P3P user agents) should first check /w3c/p3p.xml -- if they
don't find a policy reference file there they will then look for a P3P
header and/or a link tag.


Lorrie Faith Cranor - http://lorrie.cranor.org/
P3P Specification Working Group Chair - http://www.w3.org/p3p/
New book: Web Privacy with P3P - http://p3pbook.com/
Received on Tuesday, 14 January 2003 19:28:06 UTC

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