hexo-theme-stellar/layout/_partial/comments/giscus/script.ejs

<script type="module">
  const el = document.querySelector('#comments #giscus');
  util.viewportLazyload(el, load_discus, <%= theme.comments.lazyload ?? false %>);

  function load_discus() {
    if (!el) return;
    try {
        el.innerHTML = '';
      } catch (error) {
        console.error(error);
      }
      const script = document.createElement('script');
      script.async = true;
      for (const key of Object.keys(el.attributes)) {
        const attr = el.attributes[key];
        if (['class', 'id'].includes(attr.name) === false) {
          script.setAttribute(attr.name, attr.value);
        }
      }
      el.appendChild(script);
  }
</script>