ypedArray;
        }

        function createDisplayZone() {
          let canvas = document.createElement('canvas');
          canvas.width = image.width;
          canvas.height = image.height;
          document.getElementById('image-container').appendChild(canvas);
          displayZone.ctx = canvas.getContext('2d');
          // The MSDN doc says Uint8ClampedArray but it does not work (colors are melted).
          displayZone.bmpArray = new Uint8Array(image.width * image.height * 4).fill(0xff);
      