static L<Map> youtubeSearch(S q) {
  temp tempLoadingAnim("YouTube search: " + q);
  S html = str(googleImageSearch_loadPage(q));
  printIndent("XX ", html);
  int i = indexOf(html, [[{"responseContext":]]);
  if (i < 0) null;
  S json = dropSuffix(";", firstLine(substring(html, i)));
  print("Got JSON: " + json);
  ret (L) jsonDecode(json);
}