title: Fetch Request Completes Successfully, but Response Object Empty
body: <p>I have a fetch request within the <code>componentDidMount()</code> method of a React component:</p>
  
  <pre><code>const request = new Request(url, {
      mode: 'no-cors',
      method: 'get',
      headers: {
          Accept: 'application/json'
      }
  });
  
  fetch(request)
      .then(function(response) {  
          console.log('Response: ', response);
  
          return response.text();  
      })
      .then(function(data) {
          // _this.setState({ data: data });
  
          console.log('Success: ', data);
          console.log('Request succeeded with JSON response', data);
      }).catch(function(error) {
          console.log('Request failed', error);
      });
  </code></pre>
  
  <p>When the Component loads, I can see the Request being made in the Console and the proper data being returned; however, my Response object is always empty:</p>
  
  <pre><code>Response { type: "opaque", url: "", redirected: false, status: 0, ok: false, statusText: "", headers: Headers, bodyUsed: false }
  </code></pre>
  
  <p><code>response.text()</code> returns null, and I'm really uncertain what is going on. I've used the same method before and not had this problem, so I'm uncertain if it's different because of the third-party data source or what.</p>
  
  <p>Any ideas?</p>