window-onbeforeunload-not-working-on-the-ipad

index.js

// https://stackoverflow.com/questions/3239834/window-onbeforeunload-not-working-on-the-ipad


if (typeof (onbeforeunloadCallBack) === "function") {
              //newWindow.onbeforeunload = function (param) {
              //    onbeforeunloadCallBack(param);
              //}
              var isOnIOS = navigator.userAgent.match(/iPad/i) || navigator.userAgent.match(/iPhone/i);
              var eventName = isOnIOS ? "pagehide" : "beforeunload";

              newWindow.addEventListener(eventName, function (param) {
                  console.log("eventName", eventName);
                  console.log("param", param);
                  onbeforeunloadCallBack(param);
              });
          }