message: Check we are in full screen
diff: @@ -204,7 +204,7 @@ ipcRenderer.on('initialize-memory-refresh', () => {
  });
  ipcRenderer.on('exit-html-fullscreen', async () => {
  - if (document && typeof document.exitFullscreen === 'function') {
  + if (document && document.fullscreenElement) {
  await document.exitFullscreen();
  }
  });
  