Rog,
More debugging.. better results
Try it now. I made a minor modification to our Javascript file to encode the URL that we send a little better. Before, it looks like your server was getting very confused by the the URL in the query string (which we send so that we know where the Like/Comment came from). The new encoding seems to be cleaning up that issue nicely.
We'll test more for any ill-effects on our side, but so far, I don't see any reason why this minor change won't be included in our upcoming 4.0 release.
Please let us know how it goes for you, and thank you for your patience,
Alex