reset iframe from previous slide when moving between slides in lightbox

footer-scripts.html

<script>
  document.addEventListener('DOMContentLoaded', function() {
    setTimeout(function() {
      if (typeof xDynamicLightbox !== 'undefined' && xDynamicLightbox.Instances) {
        Object.keys(xDynamicLightbox.Instances).forEach(function(key) {
          const lightbox = xDynamicLightbox.Instances[key];
          
          if (lightbox && typeof lightbox.on === 'function') {
            lightbox.on('slide_before_change', ({ prev, current }) => {
              if (prev && prev.slideNode) {
                const prevIframe = prev.slideNode.querySelector('iframe');
                if (prevIframe) {
                  const src = prevIframe.src;
                  prevIframe.src = src;
                }
              }
            });
          }
        });
      }
    }, 500);
  });
</script>