What is the config.json file for?

The file config.json is present in the data/web directory of a Mendix 2.5 deployment. In my current environment, this file only contains the following (empty JSON): {} What is it for? Can I use it to do something cool?? PS If the deployment is configured to use a separate IIS web server, you need to add the .json extension with MIME type application/json to the IIS configuration. Otherwise it won't serve the config.json file, resulting in a HTTP 404 error. Anyone?
1 answers

The file config.json is currently only used in cloud apps, where it configures the "trial bar" shown at the top of any cloud application.