We have a usecase where we would like a web interface that is used to seed the RE to create a bunch of releases.
Once the release has been created, we want to identify the release id to do some further processing (add relationships, coverart, store in our local database). We can't do this in javascript because the browser prohibits XSS between our hosted site and the iframe. It would be neat to be able to get a notification about this data once the release has been created. I'm not sure what the best way to do this securely is. A Javascript callback, or a user-defined url to hit, maybe?.