@Bean
 public CorsFilter corsFilter() {
   UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
   CorsConfiguration config = props.getCors();
   if (config.getAllowedOrigins() != null && !config.getAllowedOrigins().isEmpty()) {
     source.registerCorsConfiguration("/api/**", config);
     source.registerCorsConfiguration("/v2/api-docs", config);
     source.registerCorsConfiguration("/oauth/**", config);
   }
   return new CorsFilter(source);
 }