static S uploadToImageServer_rawBytes(byte[] imgData, S name) {
  S page = postPage("http://ai1.space/images/raw/upload", "data", bytesToHex(imgData), "name", name);
  print(page);
  Matcher m = Pattern.compile("/raw/([0-9]+)").matcher(page);
  if (!m.find()) null;
  ret snippetImgLink(fsI(m.group(1)));
}