From 899cbffe332b12ca5062986d0c51972acb2782cd Mon Sep 17 00:00:00 2001
From: j000 <jarymut+github@gmail.com>
Date: Fri, 12 May 2017 20:05:35 +0200
Subject: [PATCH] ETag header should be inside double quotes (#1471)

It's small change, but still...

https://tools.ietf.org/html/rfc7232#section-2.3
---
 system/src/Grav/Common/Grav.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/system/src/Grav/Common/Grav.php b/system/src/Grav/Common/Grav.php
index c2ccfcb5af..1c639e8307 100644
--- a/system/src/Grav/Common/Grav.php
+++ b/system/src/Grav/Common/Grav.php
@@ -235,7 +235,7 @@ public function header()
 
         // Calculate a Hash based on the raw file
         if ($page->eTag()) {
-            header('ETag: ' . md5($page->raw() . $page->modified()));
+            header('ETag: "' . md5($page->raw() . $page->modified()).'"');
         }
 
         // Set debugger data in headers