Index: lib/redmine/mime_type.rb
===================================================================
--- lib/redmine/mime_type.rb	(revision 18541)
+++ lib/redmine/mime_type.rb	(working copy)
@@ -40,14 +40,21 @@
       'text/csv' => 'csv',
       'text/x-po' => 'po',
       'image/gif' => 'gif',
-      'image/jpeg' => 'jpg,jpeg,jpe',
+      'image/jpeg' => 'jpg,jpeg,jpe,jfif,pjpeg,pjp',
       'image/png' => 'png',
       'image/tiff' => 'tiff,tif',
+      'image/apng' => 'apng',
       'image/x-ms-bmp' => 'bmp',
+      'image/svg+xml' => 'svg',
+      'image/webp' => 'webp',
+      'image/x-icon' => 'ico,cur',
       'application/javascript' => 'js',
       'application/pdf' => 'pdf',
       'video/mp4' => 'mp4',
       'video/webm' => 'webm',
+      'audio/ogg' => 'ogg',
+      'audio/mpeg' => 'mp3',
+      'audio/wave' => 'wav',
+      'audio/flac' => 'flac'
     }.freeze
 
     EXTENSIONS = MIME_TYPES.inject({}) do |map, (type, exts)|