From 9d04c4eca15ffbf3ba0b9662ccae6f6b45a8cdb5 Mon Sep 17 00:00:00 2001
From: Spencer Gibb <spencer@gibb.us>
Date: Mon, 12 Feb 2018 16:21:33 -0500
Subject: [PATCH] Adds a default hearder existence check

---
 .../handler/predicate/HeaderRoutePredicateFactory.java        | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/spring-cloud-gateway-core/src/main/java/org/springframework/cloud/gateway/handler/predicate/HeaderRoutePredicateFactory.java b/spring-cloud-gateway-core/src/main/java/org/springframework/cloud/gateway/handler/predicate/HeaderRoutePredicateFactory.java
index 8a73eb1c..40943ab2 100644
--- a/spring-cloud-gateway-core/src/main/java/org/springframework/cloud/gateway/handler/predicate/HeaderRoutePredicateFactory.java
+++ b/spring-cloud-gateway-core/src/main/java/org/springframework/cloud/gateway/handler/predicate/HeaderRoutePredicateFactory.java
@@ -44,6 +44,10 @@ public class HeaderRoutePredicateFactory implements RoutePredicateFactory {
 		return apply(header, regexp);
 	}
 
+	public Predicate<ServerWebExchange> apply(String header) {
+		return apply(header, ".*");
+	}
+
 	public Predicate<ServerWebExchange> apply(String header, String regexp) {
 		return exchange -> {
 			List<String> values = exchange.getRequest().getHeaders().get(header);