From c6541c1e7a3a656bfab648677b7fdc68a8bf17c4 Mon Sep 17 00:00:00 2001
From: Bono Stebler <bono@base7booking.com>
Date: Tue, 20 Jan 2015 21:27:26 +0100
Subject: [PATCH 1/3] sendResponse() will now reply with a 304 if the Etag
 matches the request's If-None-Match header

---
 index.js | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/index.js b/index.js
index a0d8d9e..b79a050 100644
--- a/index.js
+++ b/index.js
@@ -220,9 +220,15 @@ module.exports = function enchilada(opt) {
             }
 
             res.setHeader('Content-Type', 'application/javascript');
-            res.setHeader('ETag', crypto.createHash('md5').update(src).digest('hex').slice(0, 6));
-            res.setHeader('Vary', 'Accept-Encoding');
-            respond(200, src);
+
+            var etag = crypto.createHash('md5').update(src).digest('hex').slice(0, 6);
+            if (etag === req.get('If-None-Match')) {
+                respond(304, '');
+            }else{
+                res.setHeader('ETag', etag);
+                res.setHeader('Vary', 'Accept-Encoding');
+                respond(200, src);
+            }
         }
 
         function sendError(err) {

From 225108ba054161ae86c37ed3b15beea8986bc25d Mon Sep 17 00:00:00 2001
From: Bono Stebler <bono@base7booking.com>
Date: Tue, 20 Jan 2015 21:47:31 +0100
Subject: [PATCH 2/3] Fixed checking for request header without Express

---
 index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/index.js b/index.js
index b79a050..1e5eab9 100644
--- a/index.js
+++ b/index.js
@@ -222,7 +222,7 @@ module.exports = function enchilada(opt) {
             res.setHeader('Content-Type', 'application/javascript');
 
             var etag = crypto.createHash('md5').update(src).digest('hex').slice(0, 6);
-            if (etag === req.get('If-None-Match')) {
+            if (req.get && (etag === req.get('If-None-Match'))) {
                 respond(304, '');
             }else{
                 res.setHeader('ETag', etag);

From c9adb9ec256333401dcbc441f27b4cd674c1f07a Mon Sep 17 00:00:00 2001
From: Bono Stebler <bono@base7booking.com>
Date: Wed, 21 Jan 2015 03:08:23 +0100
Subject: [PATCH 3/3] Corrected code style

---
 index.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/index.js b/index.js
index 1e5eab9..d9b3f47 100644
--- a/index.js
+++ b/index.js
@@ -224,7 +224,8 @@ module.exports = function enchilada(opt) {
             var etag = crypto.createHash('md5').update(src).digest('hex').slice(0, 6);
             if (req.get && (etag === req.get('If-None-Match'))) {
                 respond(304, '');
-            }else{
+            }
+            else {
                 res.setHeader('ETag', etag);
                 res.setHeader('Vary', 'Accept-Encoding');
                 respond(200, src);