title: How to allow pagespeed insights to http basic authentication sites?
body: <p>How to allow pagespeed insights to http basic authentication sites?
  It is returning error as follows even though I mentioned the username and password as below format.</p>
  <p><em>Lighthouse returned error: FAILED_DOCUMENT_REQUEST. Lighthouse was unable to reliably load the page you requested. Make sure you are testing the correct URL and that the server is properly responding to all requests. (Details: net::ERR_ACCESS_DENIED)</em></p>
  <p><em>https://username:password@www.example.com</em></p>
  <p>e.g curl <a href="https://www.googleapis.com/pagespeedonline/v5/runPagespeed?url=https://username:password@www.example.com" rel="nofollow noreferrer">https://www.googleapis.com/pagespeedonline/v5/runPagespeed?url=https://username:password@www.example.com</a></p>