title: fetch API returning an empty string
body: <p>I am trying to get a page's HTML using fetch API. Here is my code.</p>
  
  <pre><code>var quizUrl = 'http://www.lipsum.com/';
  var myHeaders = new Headers();
  myHeaders.append('Content-Type', 'text/html');
  fetch(quizUrl,{
      mode: 'no-cors',
      method: 'get',
      headers: myHeaders
  }).then(function(response) {
      response.text().then(function(text) {
          console.log(text);
      })
  }).catch(function(err) {
    console.log(err)
  });
  </code></pre>
  
  <p>It returns empty string. Any guesses why it doesn't work?</p>