I added the plugin and it looked like it would work well, but when I tried multiple categories on a post I ended up with an error on loading the post:
The page isn't redirecting properly
Firefox has detected that the server is redirecting the request for this address in a way that will never complete.
Even if I disable the plugin, and re-select only one category (the one I want the URL to reflect), the post continues to bring me this error. However, if I change the URL, the post loads fine. Of course, I don't want to change the URL.
Any ideas why this is happening?