before cloning:
original imageBitmap width: 120
original imageBitmap height: 120
after cloning, before transferring:
original imageBitmap width: 120
original imageBitmap height: 120
cloned imageBitmap width: 120
cloned imageBitmap height: 120
after cloning, after transferring:
original imageBitmap width: 0
original imageBitmap height: 0
cloned imageBitmap width: 120
cloned imageBitmap height: 120
transferred imageBitmap width: 120
transferred imageBitmap height: 120