<?php

// Add to your child theme's functions.php

add_action( 'wp_footer', function() {
?>
<script>
(function($) {
    $(document).on('facetwp-loaded', function() {
        if (FWP.loaded) {
            FOOBOX.init();
        }
     });
})(jQuery);
</script>
<?php
}, 100 );