Many of the components use React "addons", which is aliased from react/addons to just react in the browser field in package.json.

On the server, this breaks rendering because it does not pull in the addons. There is no way to do the browserify-style aliasing on the server (as far as I know).

I think the solution should be to get rid of the browser aliasing in package.json and just use require('react/addons') instead of require('react') within the components.