Merge pull request #3748 from JoeCqupt/origin-main

Fix RemoveResponseHeaderGatewayFilter remove header

Author: ryanjbaxter

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

@@ -47,8 +47,11 @@ public GatewayFilter apply(NameConfig config) {
 		return new GatewayFilter() {
 			@Override
 			public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
-				return chain.filter(exchange)
-					.then(Mono.fromRunnable(() -> exchange.getResponse().getHeaders().remove(config.getName())));
+				return chain.filter(exchange).then(Mono.fromRunnable(() -> {
+					if (!exchange.getResponse().isCommitted()) {
+						exchange.getResponse().getHeaders().remove(config.getName());
+					}
+				}));
 			}
 
 			@Override