why get simsimi by nodejs error

    var request = require('request');
    var cookie = null;

    var say = function(msg, cb) {
       request({
          'url': 'http://www.simsimi.com/func/req?msg=' + encodeURIComponent(msg) + '&lc=zh',
          'method': 'get',
          'headers': {
          'Cookie': cookie,
              'Referer': 'http://www.simsimi.com/talk.htm'
          }
       }, function(error, response, body) {
          console.log(error);
          console.log(response);
          console.log(body);
       });
    }

request({
   'url': 'http://www.simsimi.com/talk.htm',
   'method': 'get'
}, function(error, response, body) {
    cookie = response.headers['set-cookie'];
    cookie = (cookie + "").split(";").shift();
    console.log(cookie);
    say("hello");
}

I want get simsimi by nodejs but always return error { [Error: Parse Error] bytesParsed: 229, code: 'HPE_INVALID_HEADER_TOKEN' } who can resolve; thanks!!!