jQuery('.page p>a>img').each(function () {
  const captionSelector = 'title';
  let $img = jQuery(this);
  let $a = $img.closest('a');
  let $p = $img.closest('p');
  if ($p.text().trim().length == 0) {    // Img shoud not be an inline image
    let captionText = $img.attr(captionSelector);
    if (captionText !== undefined && captionText.length > 0) {
      let imgHtml = $a[0].outerHTML; // <a><img></a>
      let figureAttr = '';
      let imgClass = $img.attr('class');
      if (imgClass !== undefined) {
        figureAttr += ' ' + 'class="' + imgClass + '"';
      }
      let imgWidth = $img.attr('width');
      if (imgWidth !== undefined) {
        figureAttr += ' ' + 'style="width:' + imgWidth + 'px;"';
      }
      let figureHtml = '<figure' + figureAttr + '>' + imgHtml +
        '<figcaption>' + captionText + '</figcaption>' +
        '</figure>';
      $a.before(figureHtml);
      $a.remove();
      if (location.hash) {
        location.href = location.hash;
      }
    }
  }
});