Image reference error in Webworker

[Jungho-Cheon]

When I compress a particular image into a webworker, it seems that the loadImage function that calls while it compresses does not reference the image.
Could it be related to using different images for each test but not being able to refer to the image?

[Jungho-Cheon]

I think I know why. If the image is corrupted, an error occurs in the createImageBitmap(). This makes to excute loadImage() seems to refer to the Image.

If I compress a corrupted image from a Chrome browser, sometimes it prints a white image from canvas, is there a way to notice this as an error?