code: function(params, req) {
      if (req.query._jsonpdata) {
        var jsonpdata = null;
        try {
          jsonpdata = JSON.parse(decodeURIComponent(req.query._jsonpdata));
          params = _.extend(params, jsonpdata);
        } catch (e) {
          params._jsonpdata = req.query._jsonpdata;
        }
      }
      return params;
    }
docs: /*
  for js sdk, some jsonp requests will stringiy the request data and send as a query param called _jsonpdata
  if we see it, parse it as json and send to the request