I have two servers. Server A is an internal server that has access from the outside world set up here in my office. It has a Rails server running on it. I have a second serv
Solved, finally. Make sure you're using the bucket name as the subdomain for both the Policy file loading, and every file / URL request.
Solution:
http://onegiantmedia.com/cross-domain-policy-issues-with-flash-loading-remote-data-from-amazon-s3-cloud-storage