WebAssembly - QGuiApplication::exit() doesn't exit any more

          var qtLoader = QtLoader({
...
              showExit: function() {
                  status.innerHTML = "Application exit";
                  if (qtLoader.exitCode !== undefined)
                      status.innerHTML += " with code " + qtLoader.exitCode;
                  if (qtLoader.exitText !== undefined)
                      status.innerHTML += " (" + qtLoader.exitText + ")";
                  spinner.style.display = 'block';
                  canvas.style.display = 'none';
              },
...