W3C home > Mailing lists > Public > public-powderwg@w3.org > August 2007

clarity of examples Re: Comments on Grouping of Resources

From: Charles McCathieNevile <chaals@opera.com>
Date: Wed, 01 Aug 2007 17:25:35 +0200
To: "Andrea Perego" <andrea.perego@uninsubria.it>, public-powderwg@w3.org
Message-ID: <op.twdzsxpowxe0ny@widsith.local>

On Wed, 01 Aug 2007 16:09:59 +0200, Andrea Perego  
<andrea.perego@uninsubria.it> wrote:

> The engaging mr Carroll wrote:
>> 3: includeHosts
>> You seem to mean that includeHosts with example.org also includes
>> www.example.org - in a quick skim I didn't see this stated explicitly,
>> or for example that it does not include example.www.org or whatever; nor
>> what to do if you only want example.org and not foo.example.org
>
> wdr:includeHosts denotes all the resources with URIs where the host
> component ends with one of the strings in the space-separated list. So
>
> <wdr:includeHosts>example.org example.net</wdr:includeHosts>
>
> means: "resources with a URI host component ending with example.org or
> example.net". This of course includes example.org, www.example.org, and
> foo.example.org, but not example.www.org. If you wish to say
> "*example.org but not foo.example.org" you should specify what follows:
>
> <wdr:includeHosts>example.org</wdr:includeHosts>
> <wdr:excludeHosts>foo.example.org</wdr:excludeHosts>

Perhaps we should also note that

  <wdr:includeHosts>example.org</wdr:includeHosts>
  <wdr:excludeHosts>.example.org</wdr:excludeHosts>

Is what you need unless you want to implicitly include anything in a  
subdomain. Note that there are coordination discussions on this topic with  
the WAF group, and there is a precedent in P3P, so alignment here is an  
ongoing pursuit.

Cheers

Chaals

-- 
   Charles McCathieNevile, Opera Software: Standards Group
   hablo español  -  je parle français  -  jeg lærer norsk
chaals@opera.com    Catch up: Speed Dial   http://opera.com
Received on Wednesday, 1 August 2007 15:25:54 GMT

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