Occasionally (repeatedly) the CORS settings disappears. I’m on the free tier of Heroku - no idea why this is happening.
On a side note, I’ve posted about four or five questions on this forum and haven’t had a single response yet. Dreamfactory is a great little app, but without serious it’s not going to be a serious contender for production (especially given how buggy it is). It really feels like a pre-beta release, and I think the 1.x version is pretty misleading.