diff --git a/codebird-cors-proxy.php b/codebird-cors-proxy.php
index fe985cb..478d6dc 100644
--- a/codebird-cors-proxy.php
+++ b/codebird-cors-proxy.php
@@ -259,7 +259,9 @@ function http_get_request_body()
 $reply_headers = explode("\r\n", $reply[0]);
 
 foreach($reply_headers as $reply_header) {
-    header($reply_header);
+    if (strpos($reply_header, 'transfer-encoding') === false) {
+        header($reply_header);
+    }
 }
 if (isset($reply[1])) {
     $reply = $reply[1];