title: Lighthouse: Unable to run generate report on localhost
body: <p>As the title says I'm trying to generate a report for my nuxt app served locally.
  If I generate the report via DevTools it takes an extremely long time and gives me exceptionally bad scoring(compared to generating the report on the same site deployed).</p>
  <p>If I try using the lighthouse extension the &quot;Generate report&quot; button is disabled.</p>
  <p>Am I going about this wrong or is there any way to locally generate valid reports?</p>
  <p>Thanks in advance.</p>
  <p>Images:</p>
  <p><a href="https://i.stack.imgur.com/QrxoA.png" rel="nofollow noreferrer">chrome extension</a></p>
  <p><a href="https://i.stack.imgur.com/2DgSY.png" rel="nofollow noreferrer">devtools</a></p>