application.rb

    config.middleware.use Rack::XSLView,
      :myxsl => XML::XSLT.new(),
      :noxsl => ['/raw/', '/s/js/', '/s/css/', '/s/img/'],
      :passenv => ['PATH_INFO', 'RACK_MOUNT_PATH', 'RACK_ENV'],
      :xslfile => File.open(myxslfile) {|f| f.read },
      :excludehtml => false,
      :reload => true,
      :tidy => {  :doctype => 'omit',
          :numeric_entities => 1,
          :drop_proprietary_attributes => 1,
          :preserve_entities => 0,
          :input_encoding => 'utf8',
          :char_encoding => 'utf8',
          :output_encoding => 'utf8',
          :error_file => '/tmp/tidyerr.txt',
          :force_output => 1,
          :alt_text => '',
          :tidy_mark => 0,
          :logical_emphasis => 1,
        }