use custom taxonomy as subdomain

Hi all,

I want to use my custom taxonomy (mytaxonomy) as subdomain of domain.com but I don’t want to use the multisites option. I try this but without any result…

I have a wildcard DNS and had a vhost redirect for the subdomain mytaxonomy.domain.com like this :

RewriteEngine on
        RewriteRule ^/(.*)         https://www.domain.com/mytaxonomy/$1 [L]

and use this class in the wordpress installation of domain.com named class.rewritetax.php in the inc folder:

[Code moderated as per the Forum Rules. Please use the pastebin]

And of course this in my functions.php

require( TEMPLATEPATH . '/inc/class.rewritetax.php' );