From 0c05ae7a030e5c944417ee715b638c9e0c456bd8 Mon Sep 17 00:00:00 2001
From: Dries Buytaert <dries@buytaert.net>
Date: Sat, 22 Jul 2006 07:00:30 +0000
Subject: - Patch #74744 by jhenry: 304 handling should send an ETag to meet
 the HTTP/1.1 spec.

---
 includes/bootstrap.inc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'includes')

diff --git a/includes/bootstrap.inc b/includes/bootstrap.inc
index 1c68b1398..826818a55 100644
--- a/includes/bootstrap.inc
+++ b/includes/bootstrap.inc
@@ -400,7 +400,9 @@ function drupal_page_header() {
 
     // The type checking here is very important, be careful when changing entries.
     if (($modified_since !== NULL || $none_match !== NULL) && $modified_since !== FALSE && $none_match !== FALSE) {
-      header('HTTP/1.0 304 Not Modified');
+      header('HTTP/1.1 304 Not Modified');
+      // All 304 responses must send an etag if the 200 response for the same object contained an etag
+      header('Etag: $etag');
       exit();
     }
 
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