please add Accept header to http request containing application/xhtml+xml

The recommendation to use mime type application/xhtml+xml has the  
problem of not being compatible with for example Internet Explorer 6  
(which has quite a market share)

There are various recommendations about how to work around that at the  
httpd level by adding special rewrite rules handling internet explorer  
as a one off case. However, a better solution IMHO would be to use the  
http request Accept header, looking for the application/xhtml+xml  
string.

This strategy works beautifully with firefox, safarai and Internet  
Explorer, but the w3 validator unfortunately doesn't send any Accept  
headers, which makes a apache httpd server with the rewrite rules  
specified below outputting a warning that the server does send text/ 
html instead of application/xhtml+xml

In other words, adding "Accept: application/xhtml+xml, */*" to the  
requests of the validator would be a nice thing.

My rewrite rules:

RewriteEngine on
RewriteCond %{HTTP_ACCEPT} !application/xhtml\+xml
RewriteCond %{REQUEST_URI} \.xhtml$
RewriteRule .* - [T=text/html]


-- 
I guess normalcy is not really our style. -- Juno