message: fix videoElement manipulation
diff: @@ -225,10 +225,10 @@ export class BrowserCodeReader {
  }
  // Needed for iOS 11
  - this.videoElement.setAttribute('autoplay', 'true');
  - this.videoElement.setAttribute('muted', 'true');
  - this.videoElement.setAttribute('playsinline', 'true');
  - this.videoElement.setAttribute('autofocus', 'true');
  + videoElement.setAttribute('autoplay', 'true');
  + videoElement.setAttribute('muted', 'true');
  + videoElement.setAttribute('playsinline', 'true');
  + videoElement.setAttribute('autofocus', 'true');
  this.videoElement = videoElement;
  }
  