Fix case insensitive string comparison for http header names

As of RFC 2616 sec 4.2, http header names are case insensitive.

Change-Id: Ib72df2572f5a9c825c5b3ad7735126f3687aad79

diff --git a/includes/OutputHandler.php b/includes/OutputHandler.php
index b0bbcdd..c6209ee 100644 (file)
--- a/includes/OutputHandler.php
+++ b/includes/OutputHandler.php
@@ -129,7 +129,8 @@ function wfGzipHandler( $s ) {
        $headers = headers_list();
        $foundVary = false;
        foreach ( $headers as $header ) {
-               if ( substr( $header, 0, 5 ) == 'Vary:' ) {
+               $headerName = strtolower( substr( $header, 0, 5 ) );
+               if ( $headerName == 'vary:' ) {
                        $foundVary = true;
                        break;
                }