--- Revision None
+++ Revision 633539363563
@@ -0,0 +1,21 @@
+--- Request2.php.orig	2010-06-21 15:01:59.000000000 +0200
++++ Request2.php	2010-06-21 15:04:34.000000000 +0200
+@@ -469,12 +469,17 @@ class HTTP_Request2 implements SplSubjec
+             if (preg_match(self::REGEXP_INVALID_TOKEN, $name)) {
+                 throw new HTTP_Request2_Exception("Invalid header name '{$name}'");
+             }
++
+             // Header names are case insensitive anyway
+             $name = strtolower($name);
+             if (null === $value) {
+                 unset($this->headers[$name]);
+             } else {
+-                $this->headers[$name] = $value;
++                if (!isset($this->headers[$name])) {
++                    $this->headers[$name] = $value;
++                } else {
++                    $this->headers[$name] .= ', ' . $value;
++                }
+             }
+         }
+