Parse external DOM with js

parse.js

function getParsedDOM(url, callback) {
  var request = new XMLHttpRequest()
  request.open('GET', url, true)

  request.onload = function() {
    if (this.status >= 200 && this.status < 400) {
      var parser = new DOMParser();
      var doc = parser.parseFromString(this.response, "text/html");
      return callback(doc)
    }
  }

  request.send()
}



(function() {
  getParsedDOM('https://www.google.com', function(data) {
    console.log(data.querySelector('title').textContent)
  })
})()