Rudder

For (all ?) pop-up used to create items, like "configuration rule creation pop-up", the cancel button should only close the pop-up, a pure JS, client-side event. But currently, they fire an Ajax request, that does nothing (safe spending time one server and leading to some client side lag).

=> replace SHtml.ajaxButton("Cancel", { () => closePopup() }) by something like: <button onclick="closePopup();return false;">Cancel</button>