the method of roundCorners doesn't always work ...

[apiapia]

Fetches an image from a URL ...

sometimes the roundCorners can work,but it doesn't ...

cell.portraitUIImageView.imageFromURL(portraitURL, placeholder: image, fadeIn: true) {
(image: UIImage?) in
if image != nil {
cell.portraitUIImageView.image = image?.roundCorners(cornerRadius: CGFloat(image!.size.width/2), border: CGFloat(2.0), color: UIColor.red)
}
}