I currently do not know how to change that setting, I’m not enough tech-savvy 😄 … I have to learn how nginx/FastCGI/etc works before. Do not embarass yourself trying to explain, I just have to search for it by myself.
When I succeed, I will respond to your curiosity.
Concerning a notification, I don’t know what to advise :On one side, it is indeed helpful to have that kind of information right away, in a notification. In particular for first-time users trying to find out what’s happening, when there is an obvious problem. On the other side, I’m a bit afraid of the “whining app” effect. CalDav Sync Adapter is that kind of app, adding a new notification for each unsuccessful connection. Notifications start popping for all reasons, such as going in a tunnel, in the subway, connecting to my WiFi, … In the end, unusual are the time of silence 😄
I guess it depends mainly on how it’s done.
For the record, my ownCloud version is 8.1.1.