title: Javascript Fetch API: header params not working
body: <p>This is my sample request:</p>
  
  <pre><code>var header = new Headers({
    'Platform-Version': 1,
    'App-Version': 1,
    'Platform': 'FrontEnd'
  });
  
  var myInit = {
    method : 'GET',
    headers: header,
    mode   : 'no-cors',
    cache  : 'default'
  }
  
  fetch('http://localhost:3000/api/front_end/v1/login', myInit)
    .then(res =&gt; {
      console.log(res.text())
    })
  </code></pre>
  
  <p>When I debug, I see that this request is sent successfully to server, but server hasn't received header params (in this case is <code>Platform-Version</code>, <code>App-Version</code> and <code>Platform</code>). Please tell me which part do I config wrong.</p>
  
  <p>thanks</p>