docs: public static boolean isIE(HttpServletRequest request) {
  		String userAgent = getHeaderIgnoreCase(request, "User-Agent");
  		if (StrUtil.isNotBlank(userAgent)) {
  			userAgent = userAgent.toUpperCase();
  			if (userAgent.contains("MSIE") || userAgent.contains("TRIDENT")) {
  				return true;
  			}
  		}
  		return false;
  	}