SantaPress stop audio from video when closing the modal

functions.php

add_action( 'wp_footer', function () { ?>
<script>

jQuery(document).ready(function(){
  jQuery(document).on('click', '.close-modal', function() {
    jQuery('.santapress-post').find('video source').attr('src', '');
    jQuery('.santapress-post').find('video').remove();
    return false;
  });
});

</script>
<?php } );