Bootstrap 5 Modal not working in Electron

Question

I'm using bootstrap 5 in my web app and the modal is not showing up.

Here is the HTML for my modal and for the button activating it:

<div
          class="modal"
          tabindex="-1"
          id="newInstallModal"
          aria-labelledby="settings"
        >
          <div class="modal-dialog">
            <div class="modal-content">
              <div class="modal-header">
                <h5 class="modal-title">Modal title</h5>
                <button
                  type="button"
                  class="btn-close"
                  data-bs-dismiss="modal"
                  aria-label="Close"
                ></button>
              </div>
              <div class="modal-body">
                <p>Modal body text goes here.</p>
              </div>
              <div class="modal-footer">
                <button
                  type="button"
                  class="btn btn-secondary"
                  data-bs-dismiss="modal"
                >
                  Close
                </button>
                <button type="button" class="btn btn-primary">
                  Save changes
                </button>
              </div>
            </div>
          </div>
        </div>
        <input
          id="newInstallButton"
          type="button"
          class="btn btn-outline-primary"
          value="New Install"
        />

And here is the typescript code assigning that bootstrap-5 provided to open the modal via js.

newInstallModal = <HTMLDivElement>document.getElementById("newInstallModal");
newInstallButton = <HTMLButtonElement>document.getElementById("newInstallButton");

newInstallModal.addEventListener("show.bs.modal", () => {
   newInstallButton.focus();
})

Any help is good, because I'm done debugging for today.

Answer 1

Bootstrap-modal v5 usage :

Either you have to use data- attributes:

<button type="button" data-bs-toggle="modal" data-bs-target="#newInstallModal">Launch modal</button>

OR via script:

var myModal = new bootstrap.Modal(document.getElementById('newInstallModal'), options)

EDIT: Also

myModal.addEventListener('shown.bs.modal', ...)

is just an eventlistener for when the modal is shown (after show transition ended)