form-submit-utils

Usage

<script src="https://cdn.jsdelivr.net/npm/form-submit-utils@1.0.0/dist/form-submit-utils.min.js"></script>

<script>
   $('#form-test-modal').form_submit_bs_modal({
    error: function(msg) {
        alert("ERROR: " + msg);
    }
   });
</script>