From: Kevin L. Kane <kevin.kane@gmail.com>
Date: Thu, 29 Oct 2015 18:32:03 +0000 (-0400)
Subject: making SerializeBase respect Vary: header if it has already been set
X-Git-Tag: v1.20~2^2^2~1
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=b00b32deee48ef2e6e2999bde4c20e53b9e991da;hp=19cd07ecf000cd9fe5652c1a171e1a942902d20c;p=catagits%2FCatalyst-Action-REST.git

making SerializeBase respect Vary: header if it has already been set
---

diff --git a/lib/Catalyst/Action/SerializeBase.pm b/lib/Catalyst/Action/SerializeBase.pm
index 9f7a1ac..b901f61 100644
--- a/lib/Catalyst/Action/SerializeBase.pm
+++ b/lib/Catalyst/Action/SerializeBase.pm
@@ -118,10 +118,12 @@ sub _load_content_plugins {
     }
 
     if ($search_path eq "Catalyst::Action::Serialize") {
-        if ($content_type) {
-            $c->response->header( 'Vary' => 'Content-Type' );
-        } elsif ($c->request->accept_only) {
-            $c->response->header( 'Vary' => 'Accept' );
+        unless( $c->response->header( 'Vary' ) ) {
+            if ($content_type) {
+                $c->response->header( 'Vary' => 'Content-Type' );
+            } elsif ($c->request->accept_only) {
+                $c->response->header( 'Vary' => 'Accept' );
+            }
         }
         $c->response->content_type($content_type);
     }