title: fetch http request succeeds in Chrome and Firefox but fails in Safari
body: <p>If we run the following code in safari it fails saying &quot;failed to load resource: cannot parse response&quot;</p>
  <pre><code>fetch('https://mycompanyname/service/contracts-api/operatingMode', {
    method: &quot;GET&quot;,
    headers: new Headers({
      'Authorization': 'Basic VGVzdFVzZXIxOlRFU1QhdXNlcjE=',
      'X-mycompanyname-ContractsServer': 'someurl'
    })
  }
  </code></pre>
  <p><a href="https://i.stack.imgur.com/hphLf.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/hphLf.png" alt="safari inspect element preview" /></a></p>
  <p><a href="https://i.stack.imgur.com/KGJJD.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/KGJJD.png" alt="safari inspect element headers" /></a>
  But if we run the same code in Chrome or Firefox, it succeeds (in the same mac computer).</p>
  <p>Is there any quirk in Safari fetch request that I am not considering?</p>