hexo-theme-stellar/layout/_plugins/fancybox.ejs

<script>
  ctx.fancybox = {
    selector: `<%- conf.selector %>`,
    css: `<%- conf.css %>`,
    js: `<%- conf.js %>`
  };
  var selector = '[data-fancybox]:not(.error)';
  if (ctx.fancybox.selector) {
    selector += `, ${ctx.fancybox.selector}`
  }
  var needFancybox = document.querySelectorAll(selector).length !== 0;
  if (!needFancybox) {
    const els = document.getElementsByClassName('ds-memos');
    if (els != undefined && els.length > 0) {
      needFancybox = true;
    }
  }
  if (needFancybox) {
    utils.css(ctx.fancybox.css);
    utils.js(ctx.fancybox.js, { defer: true }).then(function () {
      Fancybox.bind(selector, {
        hideScrollbar: false,
        Thumbs: {
          autoStart: false,
        },
        caption: (fancybox, slide) => {
          return slide.triggerEl.alt || slide.triggerEl.dataset.caption || null
        }
      });
    })
  }
</script>