{#
  To conform with standard, put <noscript> for <meta http-equiv> inside <head>.
  https://developer.mozilla.org/en-US/docs/Web/HTML/Element/meta
  And may as well put <style> tag here, just in case.
#}
<noscript>
  <style>body > section:not(#noscript) { display: none !important; }</style>
  {% if noscriptRefreshUrl !== null -%}
  <!-- Redirect after 3 seconds -->
  <meta http-equiv="refresh" content="3;url={{ noscriptRefreshUrl or 'nojs' }}">
  {%- endif %}
</noscript>