mod_http_oauth2: Avoid tripping on redirect URIs when omitted Since device clients don't need to include redirect_uris, this function needs to handle that case and not try to index the missing array.

<tr>
  <td colspan="2">
    <script src="https://hcaptcha.com/1/api.js" async defer></script>
    <div class="h-captcha" data-sitekey="{captcha_public_key}"></div>
  </td>
</tr>