Change createThumbnailFromUrl to accept crossOrigin argument
Change createThumbnailFromUrl to accept crossOrigin argument

#988

antpaw/dropzone,StocksyUnited/dropzone,antpaw/dropzone,codedogfish/dropzone,codedogfish/dropzone,codedogfish/dropzone,antpaw/dropzone,StocksyUnited/dropzone,StocksyUnited/dropzone