@@ -40,7 +40,8 @@ getMimeType f = M.lookup (map toLower $ drop 1 $ takeExtension f) mimeTypes
4040 where mimeTypes = M.fromList mimeTypesList
4141
4242extensionFromMimeType :: String -> Maybe String
43−extensionFromMimeType mimetype = M.lookup mimetype reverseMimeTypes
43+extensionFromMimeType mimetype = M.lookup (takeWhile (/=';') mimetype) reverseMimeTypes
44+ -- note: we just look up the basic mime type, dropping the content-encoding etc.
4445 where reverseMimeTypes = M.fromList $ map (\(k,v) -> (v,k)) mimeTypesList
4546
4647mimeTypesList :: [(String, String)]