There are some problems with AssetManager in spine-canvas.js

lzy100w

img.crossOrigin = "anonymous" should be in front of img.src = path, otherwise the onload event will not be triggered on some phones(Mobile platform)

These two parts should be interchangeable, because the user may access the assets properties in the success method.

Mario

Great catch! I've fixed both issues on the dev branch. I also switched around the order of registering an error and calling the error callback. Thanks for reporting!