Help with Yahoo Pipes Error

I am getting an error on the response while using OSDE ( Open Social Developer Environment ) HTTP ERROR 500 Problem accessing /gadgets/makeRequest. Reason: host parameter is null I think Yahoo Pipes is rejecting the request because it's coming from a local server. Can anyone confirm this? I did not see any documentation at pipes.yahoo.com that would confirm or deny this in their documentation or their forums. Has anyone use used Yahoo Pipes in an opensocial/ facebook context?