script.
  function loadGitalk () {
    function addGitalkSource () {
      const ele = document.createElement('link')
      ele.rel = 'stylesheet'
      ele.href= '!{url_for(theme.CDN.gitalk_css)}'
      document.getElementsByTagName('head')[0].appendChild(ele)
    }

    function initGitalk () {
      var gitalk = new Gitalk({
        clientID: '!{theme.gitalk.client_id}',
        clientSecret: '!{theme.gitalk.client_secret}',
        repo: '!{theme.gitalk.repo}',
        owner: '!{theme.gitalk.owner}',
        admin: ['!{theme.gitalk.admin}'],
        id: '!{md5(page.path)}',
        language: '!{theme.gitalk.language}',
        perPage: !{theme.gitalk.perPage},
        distractionFreeMode: !{theme.gitalk.distractionFreeMode},
        pagerDirection: '!{theme.gitalk.pagerDirection}',
        createIssueManually: !{theme.gitalk.createIssueManually},
        updateCountCallback: commentCount
      })
      gitalk.render('gitalk-container')
    }

    if (typeof Gitalk === 'function') initGitalk()
    else {
      addGitalkSource()
      $.getScript('!{url_for(theme.CDN.gitalk)}', initGitalk)
    }

    function commentCount(n){
      try {
        document.getElementsByClassName('gitalk-comment-count')[0].innerHTML= n
      } catch (e) {
        return false
      }
    }
  }

  if ('!{defaultComment}' === 'Gitalk' || !{theme.comments.load_begin}) {
    loadGitalk()
  }
  else {
    function loadOtherComment () {
      loadGitalk()
    }
  }