Merge pull request #44 from alexsong93/header-fix

Add X-Gateway-Host header to /50x location block
diff --git a/api-gateway-config/conf.d/managed_endpoints.conf b/api-gateway-config/conf.d/managed_endpoints.conf
index 948d8b0..6edacd0 100644
--- a/api-gateway-config/conf.d/managed_endpoints.conf
+++ b/api-gateway-config/conf.d/managed_endpoints.conf
@@ -48,6 +48,7 @@
     location /50x.html {
         more_set_headers 'Content-Type: application/json';
         more_set_headers 'X-Request-Id: $requestId';
+        more_set_headers 'X-Gateway-Host: $gateway_host';
         return 500 '{"code":$status, "message":"Oops. Something went wrong. Check your URI and try again."}\n';
     }