Downloading Image From Website To Desktop

Can someone please explain to me. Why my this code is not working? I have changed my code over and over and its hard to explain what is not working. So i finally put it in my websi

Solution 1:

After some digging, it looks like the issue is that your canvas is tainted, and you cannot export a tainted canvas. To make sure you canvas is not tainted, you cannot use cross-origin images. For example, I tried using a base-64 encoded image instead, and that one worked perfectly fine.