This does work, but...
If you turn on your debug, and log them , you will find about 100 php notices for every page load, all pointing at this plugin. There are some issues with the coding style of this plugin.
Note to developer: turn on your debug by adding this to your config file and have a look:
define('WP_DEBUG', true); define('WP_DEBUG_LOG', true); define('WP_DEBUG_DISPLAY', true); @ini_set('display_errors', 0);
edit - see following posts.
upgraded rating from one to four stars