I want to understand this server_url field in meta.json more. My add-on has only one app and it's hosted in Jive (--apphosting='jive').
I would like to know what's the purpose of server_url if app is hosted in Jive.
If your html file needs some data which is external to Jive then in that case you need to have a service which will do that work for you. The server url is the url of the deployed service on some server X.