jquery-3.1.1.js
is conflicting with previous code. I added jquery-3.1.1.js to implement a Bootstrap Modal, but as a result the rest of the code is not working properly now.
<link rel="stylesheet" href="<?php echo base_url(); ?>bootstrap-3.3.7/dist/css/bootstrap-iso.css">
<script type="text/javascript" src="<?php echo base_url(); ?>js/jquery-3.1.1.js"></script>
<script type="text/javascript" src="<?php echo base_url(); ?>bootstrap-3.3.7/dist/js/bootstrap.min.js"></script>