anchor.diff:        throw const CameraNotSupportedException();
       }
   
  -    videoElement = html.VideoElement()
  -      ..style.setProperty('pointer-events', 'none');
  +    videoElement = html.VideoElement()..applyDefaultStyles();
       divElement = html.DivElement()
         ..append(videoElement)
         ..style.setProperty('object-fit', 'cover');
  
positive.code: }
  
  extension on html.VideoElement {
    void mirror() {
      style
        ..removeProperty('transform-origin')
        ..setProperty('width', '100%')
        ..setProperty('height', '100%')
        ..setProperty('transform', 'scaleX(-1)')
  
negative.code:       videoElement.srcObject = stream;
      }
      await videoElement.play();
    }
  
    void stop() {
  