public String guessContentType() {
		for (int idx = 0 ; idx < body.length() ; idx++) {
			char c = body.charAt(idx);
			switch (c) {
				case ' ':
					continue;
				case '<':
					return "application/xml;charset=UTF-8";
				case '{':
					return "application/json;charset=UTF-8";
				case '[':
					return "application/json;charset=UTF-8";
			}
		}
		return "text/html;charset=UTF-8";
	}