add RemoveNonProxyHeaders filter

src/main/java/org/springframework/cloud/gateway/config/GatewayProperties.java

@@ -3,12 +3,15 @@ package org.springframework.cloud.gateway.config;
 import java.util.ArrayList;
 import java.util.List;
 
+import javax.validation.Valid;
+import javax.validation.constraints.NotNull;
+
 import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.cloud.gateway.api.FilterDefinition;
 import org.springframework.cloud.gateway.api.Route;
+import org.springframework.cloud.gateway.filter.route.RemoveNonProxyHeadersRouteFilter;
 
-import javax.validation.Valid;
-import javax.validation.constraints.NotNull;
+import static org.springframework.cloud.gateway.support.NameUtils.normalizeFilterName;
 
 /**
  * @author Spencer Gibb
@@ -26,7 +29,15 @@ public class GatewayProperties {
 	/**
 	 * List of filter definitions that are applied to every route.
 	 */
-	private List<FilterDefinition> defaultFilters = new ArrayList<>();
+	private List<FilterDefinition> defaultFilters = loadDefaults();
+
+	private ArrayList<FilterDefinition> loadDefaults() {
+		ArrayList<FilterDefinition> defaults = new ArrayList<>();
+		FilterDefinition definition = new FilterDefinition();
+		definition.setName(normalizeFilterName(RemoveNonProxyHeadersRouteFilter.class));
+		defaults.add(definition);
+		return defaults;
+	}
 
 	public List<Route> getRoutes() {
 		return routes;