docs: function jsonp() {
      function _jsonp(req, res, next) {
          var q = req.getQuery();
  
          // If the query plugin wasn't used, we need to hack it in now
          if (typeof (q) === 'string') {
              req.query = qs.parse(q);
          }
  
          if (req.query.callback || req.query.jsonp) {
              res.setHeader('Content-Type', 'application/javascript');
          }
  
          next();
      }
  
      return (_jsonp);
  }