WordPress has supported alternate plugin directories since 2.6 and has pretty much always supported keeping WP itself in a directory other than where the content is displayed (eg, content at site root, WP in /wp). WWSGD 2.0 does not support either of these.
When loading jquery.cookie.js, the plugin attempts to load it with (line 203):
Which results in a URL of:
In my particular case, that URL should look like:
But some people may also need something like:
... or any number of other paths.
The correct way to do this is to check the WP_CONTENT_URL and build your path using that value.
Optionally, an option to revert to the 1.x server-side method for this would be nice.