docs: public static Map<String, String> getFacebookCookieData(Cookie[] cookies, String appId, String appSecret) {
  		if (cookies != null) {
  			for (Cookie cookie : cookies) {
  				if (cookie.getName().equals("fbs_" + appId)) {
  					Map<String, String> cookieData = extractDataFromCookie(cookie.getValue().trim());
  					if (calculateSignature(appSecret, cookieData).equals(cookieData.get("sig"))) {
  						return cookieData;
  					}
  					break;
  				}
  			}
  		}
  		return Collections.<String, String> emptyMap();
  	}