If, like me, you had dynamically created buttons on your page, the
$("#your-bs-button's-id").on("click", function(event) {
or
$(".your-bs-button's-class").on("click", function(event) {
methods won't work because they only work on current elements (not future elements). Instead you need to reference a parent item that existed at the initial loading of the web page.
$(document).on("click", "#your-bs-button's-id", function(event) {
or more generally
$("#pre-existing-element-id").on("click", ".your-bs-button's-class", function(event) {
There are many other references to this issue on stack overflow here and here.