run the panorama init function when the popover opens

footer-scripts.html

<script>
  
document.addEventListener("DOMContentLoaded", () => {

    const popover = '.my-popover'; /* change to selector for your popover element */

    const popoverEl = document.querySelector(popover);

    if (!popoverEl) return;

    popoverEl.addEventListener("x_popover:show", () => {
        doExtrasPanoramaViewer(popoverEl);
    });

});

</script>