connectionDidFinishLoading called before didReceiveData with rails production sending photos

I have a rails 3.0.3 website that, in development mode, responds to a HTTP GET by calling didReceiveData and then connectionDidFinishLoading, and photo data is sent from the website to the iPhone and displayed correctly. But when I run the rails 3.0.3 website in production mode, connectionDidFinishLoading is called before didReceiveData. I'm using carrierwave to handle the photos for both the development and production rails sites.