Fix loadImage when the type is Blob

[diyews]

For Blob doesn't have a name property natively, it not set explicitly, it will throw an error Cannot read property 'endsWith' of undefined

So I am going to check the type of Blob, and this change is compatible if someone set name used old version.

[Balearica]

Thanks for flagging this. Closing as the problematic code was removed entirely in the latest version (v3).