module Roda::RodaPlugins::HeaderMatchers::RequestMethods

def match_accept(mimetype)

Match if the given mimetype is one of the accepted mimetypes. 
def match_accept(mimetype)
  if @env["HTTP_ACCEPT"].to_s.split(',').any?{|s| s.strip == mimetype}
    response["Content-Type"] = mimetype
  end
end