Control character causes socket hang up

control-madness.js

var http = require("http");

var query = 'ningun';

http.get("http://127.0.0.1:2000/api/v1/dictionary?q=" + query + "&source=en", function(res) {
  res.setEncoding('utf8');
  var content = '';
  res.on('data', function (chunk) {
    console.log("res.on data");
    content += chunk;
  });
  res.on('end', function () {
    console.log("res.on end: ", content);
  });
  res.on('error', function (err) {
    console.log('res.on error: ', err);
  });
}).on('error', function(err) {
  console.log("http.get.on error: ", err);
});