title: font-family does not fall back to the next font in line
body: <p>When I set <code>font-family: Roboto, sans-serif;</code> <strong>Roboto</strong> is rendered.</p>
  <p>But if I add Helvetica <code>font-family: Helvetica, Roboto, sans-serif;</code> , then <strong>Arial</strong> is rendered.</p>
  <p><em>Tested in Chrome 99 and Firefox 98 on Windows 11. On my system there's Roboto installed and Arial preinstalled. Helvetica is not.</em></p>
  <p>Why doesn't it fall back to <strong>Roboto</strong> since its the next font in line?</p>