I have two development servers written with Python/Django - one API server(it's not solely an API server; it has UI and etc.), and another one is a demo app used to serve data by communicating to the API server. I invoke the demo app with iframe in the API server. After successfully getting response from the demo app, the original user session of the API server is lost(supposed to have two sessions -- one from the user of the API server, one from communication between the demo app and the API server).
Any idea what happened?