From 2c861a27bc15a8aa0d5125f28bc87ec3653b3753 Mon Sep 17 00:00:00 2001
From: Vincent Enjalbert <chef@web-cooking.net>
Date: Wed, 23 Jan 2019 13:07:34 +0100
Subject: [PATCH] #25 deduplicate header links (#26)

---
 src/Middleware/AddHttp2ServerPush.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/Middleware/AddHttp2ServerPush.php b/src/Middleware/AddHttp2ServerPush.php
index 70c5979..253cf28 100644
--- a/src/Middleware/AddHttp2ServerPush.php
+++ b/src/Middleware/AddHttp2ServerPush.php
@@ -50,6 +50,7 @@ protected function generateAndAttachLinkHeaders(Response $response, $limit = nul
                 return $this->buildLinkHeaderString($url);
             })
             ->filter()
+            ->unique()
             ->take($limit)
             ->implode(',');