Bootbox Alert Confirm Message with bootstrap modal http://bootboxjs.com/
<a class="sfe-btn-secondary js-confirm-delete"
href="{!! route('contents.delete', [$content->id]) !!}"
data-confirm-message="Are you sure wants to delete this Content??">
Eliminar
</a>
<script>
$(document).on("click", ".js-confirm-delete", function(e) {
var newhref = $(this).attr("href"),
message = $(this).attr("data-confirm-message")
e.preventDefault();
bootbox.confirm(message, function(result) {
if(result) {
document.location.href = newhref;
}
});
});
</script>