title: Double request to the page
body: <p>I run lighthouse in chrome dev tools and get this in performance trace tab.
  <a href="https://i.stack.imgur.com/jsiBT.png" rel="nofollow noreferrer">network screenshot</a></p>
  <p>It has a double request and I try to understand what causes it. As you can see, first paint starts only after the second req ended.</p>
  <p>I've tried <code>req.connection.setTimeout(60 * 1000);</code> but it doesn't work. Its also not a &quot;favicon case&quot;.</p>
  <p>upd.</p>
  <p>The first request has</p>
  <pre><code>'sec-fetch-mode': 'navigate',
  'sec-fetch-dest': 'document',
  </code></pre>
  <p>the second</p>
  <pre><code>'sec-fetch-mode': 'cors',
  'sec-fetch-dest': 'empty',
  </code></pre>