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Re: Browsing the Web with a non-existing User-Agent

From: Jo Rabin <jrabin@mtld.mobi>
Date: Wed, 01 Oct 2008 20:10:11 +0100
Message-ID: <48E3CB13.9000006@mtld.mobi>
To: Francois Daoust <fd@w3.org>
CC: public-bpwg-ct <public-bpwg-ct@w3.org>

If you don't supply a User-Agent at all a lot of sites break, according 
to some stuff I did a while ago.

But yes, this is at the heart of what we are trying to establish. If, as 
a Content Provider, you do differentiate on User Agent and not Accept 
then that's interesting and that's what we are in the game to promote, I 
think. I'm sorry that it's not more prevalent in your sample, Francois.


On 01/10/2008 15:53, Francois Daoust wrote:
> I've been masquerading my User-Agent header lately to browse the Web, 
> using a non-existing User-Agent with no link whatsoever to any existing 
> one.
> I was expecting to see things break one way or the other, but the thing 
> is I had no real problem so far.
> I see a few sites that return an "application/vnd.wap.xhtml+xml" 
> content-type that is not recognized by my browser, but this typically is 
> an indication that they have a mobile-optimized version, so not what I 
> would consider to be a big problem.
> So I'm wondering. Can anyone point out a few web sites that returns a 
> rejected response when queried with a "weird" User-Agent? (either 
> through a 406 status, or through a 200 status code with a "sorry" 
> message) I suppose I'm only browsing modern Web sites, not "legacy" ones.
> Thanks,
> Francois.
Received on Wednesday, 1 October 2008 19:11:09 UTC

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