프론트로 넘어가기 전 JWT 유효성 검사를 위해 configureClientInboundChannel를 사용했습니다.다시 WebSocketConfig로 돌아가서... WebSocketConfig@Configuration@EnableWebSocketMessageBroker@RequiredArgsConstructorpublic class WebSocketConfig implements WebSocketMessageBrokerConfigurer { private final JwtUtil jwtUtil; @Override public void configureClientInboundChannel(ChannelRegistration registration) { registration...