hacks-guide-minimal-mistakes-theme/_includes/comments-providers/staticman.html

{% if site.repository and site.staticman.branch %}
  <!-- Start comment form modal -->
  <article class="modal">
    <h2 class="modal__title js-modal-title"></h2>
    <div class="modal__supporting-text js-modal-text"></div>
    <div class="modal__actions">
      <button class="btn btn--danger js-close-modal">{{ site.data.ui-text[site.locale].close_btn_label | default: "close" }}</button>
    </div>
  </article>
  <!-- End comment form modal -->

  <script>
    (function ($) {
    var $comments = $('.js-comments');

    $('.js-form').submit(function () {
      var form = this;

      $(form).addClass('form--loading');

      $.ajax({
        type: $(this).attr('method'),
        url: $(this).attr('action'),
        data: $(this).serialize(),
        contentType: 'application/x-www-form-urlencoded',
        success: function (data) {
          showModal('{{ site.data.ui-text[site.locale].comment_success_title | default: "Comment submitted" }}', '{{ site.data.ui-text[site.locale].comment_success_msg | default: "Thanks for your comment! It will show on the site once it has been approved." }}');
          $(form).removeClass('form--loading');
          $('#comment-form-submit').addClass('btn--disabled').html('{{ site.data.ui-text[site.locale].comment_btn_submitted | default: "Submitted" }}');
        },
        error: function (err) {
          console.log(err);
          showModal('{{ site.data.ui-text[site.locale].comment_error_title | default: "Error" }}', '{{ site.data.ui-text[site.locale].comment_error_msg | default: "Sorry, there was an error with your submission. Please make sure all required fields have been completed and try again." }}');
          $(form).removeClass('form--loading');
        }
      });

      return false;
    });

    $('.js-close-modal').click(function () {
      $('body').removeClass('show-modal');
    });

    function showModal(title, message) {
      $('.js-modal-title').text(title);
      $('.js-modal-text').html(message);

      $('body').addClass('show-modal');
    }
  })(jQuery);
  </script>
{% endif %}