docs: function handleFile(fs, path, res) {
    var contentType = mime.lookup(path);
    var encoding = mime.charsets.lookup(contentType) === "UTF-8" ? "utf8" : null;
  
    fs.readFile(path, {encoding: encoding}, function(err, data) {
      if(err) {
        log.error(err, 'Unable to read file path `%s`', path);
        handle404(path, res);
        return;
      }
  
      write(data, contentType, res);
    });
  }