not-universal-browser-http.js

const xhr = new XMLHttpRequest();

xhr.onload = () => {
  // Consume response body.
  const body = xhr.responseText;
}

xhr.onerror = (e) => {
  console.log(`Got error: ${e.message}`);
}

oReq.open("GET", 'http://www.google.com/index.html');
oReq.send();