fix RemoveResponseHeaderGatewayFilter remove header

Signed-off-by: jiangyuan <[email protected]>

Author: JoeCqupt

spring-cloud-gateway-server/src/main/java/org/springframework/cloud/gateway/filter/factory/RemoveResponseHeaderGatewayFilterFactory.java

@@ -48,7 +48,11 @@ public GatewayFilter apply(NameConfig config) {
 			@Override
 			public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
 				return chain.filter(exchange)
-					.then(Mono.fromRunnable(() -> exchange.getResponse().getHeaders().remove(config.getName())));
+						.then(Mono.fromRunnable(() -> {
+							if (!exchange.getResponse().isCommitted()) {
+								exchange.getResponse().getHeaders().remove(config.getName());
+							}
+						}));
 			}
 
 			@Override