User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:0.9.2) Gecko/20010628
Accept: text/xml, application/xml, application/xhtml+xml, text/html;q=0.9, image/png, image/jpeg, image/gif;q=0.2, text/plain;q=0.8, text/css, */*;q=0.1
This XHTML page has one rel="Home" link and three rel="Alternate" links. When served as text/html, they all show up in the LINK toolbar. When served as text/xml, the toolbar remains grayed out.