+ # Rate both variants the same to prefer "text/html" for undecided clients.
+ # At least
+ # Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8b) Gecko/20050217
+ # prefers "application/xhtml+xml" over "text/html" itself:
+ # text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5