V8 to v9 package conversion: alternative to Magnific Popup?

Developing with Concrete
1

Magnific Popup is not in v9. Is it replaced with anything? How do I make a lightbox popup in v9?

2

I managed to use Bootstrap Modal instead:

<div id="spinner_<?php echo $bID; ?>" class="ab-ajax-file-upload-spinner modal">
    <div class="modal-dialog modal-dialog-centered">
        <div class="alert alert-danger">
            <h4><?php echo t('File upload in progress'); ?></h4>
        </div>
    </div>
</div>

$(document).ready(function() {
    var spinner = $('#spinner_' + bid);
    var myModal = new bootstrap.Modal(spinner, {
        keyboard: false,
    });
    myModal.show();
});
3

My magnific popups are all working fine in v9

4

I had hundreds of messages in the log saying the lightbox asset was missing. So I assumed it was removed and used the Bootstrap Model instead.