Hmm. I got the same issue while trying to use certain libraries. Not all of them is suitable for using in the client side. I changed some of the code and using the `module.exports` method to export it for browserify to use. Luckily most of the code is exposing an object already, so may not that hard to change it. The best approach may wrapper it and send the author of the lib a pull request. You may also check the video here. http://www.youtube.com/watch?v=YabwsSq6ASQ

We were just sharing an attempt to use it and explaining why we considered using Browserify. If you want more insight on it we will follow through with a more technical approach to it.