Why use ImageIO can't get BufferedImage from URL

imageURL: https://fbexternal-a.akamaihd.net/safe_image.php?d=AQBB77GLfY75FNWL&w=720&h=2048&url=http%3A%2F%2Fwww.facebook.com%2Fads%2Fimage%2F%3Fd%3DAQI0duFYFcmydWNutbwmSk2DfOmHcDrhPfsMJTUoEObbWkVzYUtrHgCuN_LFrWcPRzJi6jPgbn80oFs0Kj_WrdROjdnJkjbnS5-UJv9l9cJyhKCWS-lr-MXlc263Ul3Txe-VFqXfRrA6BOjt4DF-Sww2&ext=best

URL url = new URL(imageURL);
BufferedImage image = ImageIO.read(url);

or

URL url = new URL(imageURL);
BufferedImage image = ImageIO.read(url.openStream());

the result image is null? why?