footer.dtl

<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->

<script src="https://tools-static.wmflabs.org/cdnjs/ajax/libs/jquery/3.3.1/jquery.slim.min.js"</script>
<script src="https://tools-static.wmflabs.org/cdnjs/ajax/libs/popper.js/1.14.7/umd/popper.min.js"</script>
<script src="https://tools-static.wmflabs.org/cdnjs/ajax/libs/twitter-bootstrap/4.3.1/js/bootstrap.min.js"</script>

<!-- Selectize.js: https://github.com/selectize/selectize.js -->
<script src="https://tools-static.wmflabs.org/cdnjs/ajax/libs/selectize.js/0.12.6/js/standalone/selectize.js"</script>