I guess, something wrong with Resources.REST::collectionPath
https://github.com/joosy/joosy/blob/master/source/joosy/resources/rest.coffee#L113

First of all, String::underscore is sugarjs method. I heard, joosy is not depend on it now. Anyway, if i include sugarjs in my app, i'll get: TypeError: Object [object global] has no method 'replace' =(

Second, IMO, Joosy.namespace should not affect to result url. It need only for avoid name collisions, right? It would be better, if namespace for url (if it surely need) can be specified evidently in Resource class