Unable to close Modal + Non Dim Popup QML using QQuickWidget using default close policy

int main(int argc, char* argv[])
{
   QApplication app(argc, argv);

   QQmlEngine engine;
   QMainWindow window;
   QQuickWidget widget(&engine, nullptr);

   widget.setSource(QUrl("qrc:///ui/Main.qml"));

   if (!widget.errors().isEmpty())
   {
      return EXIT_FAILURE;
   }

   widget.setResizeMode(QQuickWidget::ResizeMode::SizeRootObjectToView);

   window.setCentralWidget(&widget);
   window.setMinimumSize(1080, 760);
   window.setVisible(true);

   return app.exec();
}

import QtQuick 2.10
import QtQuick.Controls 2.3

Item {
   id: root

    width: 640
    height: 480
    visible: true

   Rectangle {
      width: parent.width / 2
      height: parent.height / 2
      anchors.centerIn: parent
      color: "red"

      MouseArea {
         anchors.fill: parent
         onClicked: popup.open()
      }
   }

    Popup {
      id: popup

      x: Math.round((parent.width - width) / 2)
      y: Math.round((parent.height - height) / 2)
      width: parent.width / 4
      height: parent.height / 4
      modal: true
      dim: false
   }
}

int main(int argc, char* argv[])
{
   QGuiApplication app(argc, argv);

   QQuickView view;
   view.setSource(QUrl("qrc:///ui/Main.qml"));

   if (!view.errors().isEmpty())
   {
      return EXIT_FAILURE;
   }

   view.show();

   return app.exec();
}