It appears that some MIME detectors on Windows machines identify svg's as 'image...

diff --git a/includes/DefaultSettings.php b/includes/DefaultSettings.php
index 0eb4fb7..8401fb0 100644 (file)
--- a/includes/DefaultSettings.php
+++ b/includes/DefaultSettings.php
@@ -1586,6 +1586,7 @@ $wgMediaHandlers = array(
        'image/gif' => 'BitmapHandler',
        'image/x-ms-bmp' => 'BmpHandler',
        'image/svg+xml' => 'SvgHandler',
+       'image/svg' => 'SvgHandler',
        'image/vnd.djvu' => 'DjVuHandler',
 );