Fixe date format in last-modified http header.

1 files changed, 1 insertions, 1 deletions

diff --git a/utils/imagecache.php b/utils/imagecache.php
index 3d9a388..8aaaba9 100644
--- a/utils/imagecache.php
+++ b/utils/imagecache.php
@@ -91,7 +91,7 @@ function getCachedImage($filename, $maxwidth, $maxheight)
 	header('Content-Type: image/jpeg');
 	header('Content-Length: ' . filesize($fullfilename));
 	header('Content-Disposition: inline; filename=' . basename($filename));
-	header('Last-Modified: ' . date("F d Y H:i:s.", filemtime($fullfilename)));
+	header('Last-Modified: ' . date("r", filemtime($fullfilename)));
 	readfile($fullfilename); 
 }