No Signal
The app keeps a copy on the device of what it has loaded: the productions and tabs you have opened, for up to seven days. With no connection it shows that copy, read-only. A yellow pill at the bottom says "You're offline", with how old the copy is. Edits wait for the connection. Try one and you get "No internet connection". Nothing is queued, so an edit made offline is not saved.
Coming Back
When the connection returns the app fetches what changed. The pill turns blue ("Updating your production..."), then green ("You're up to date"), then goes away.
Online but Behind
The harder case is a device that has a connection and is still wrong. A phone locked in a pocket, or a tab the browser froze, stops hearing live changes. The app catches up by itself on wake and reconnect. When that has not worked for 90 seconds, an orange pill appears: "This may not be the latest version", with a line saying edits made on other devices may be missing. Its Refresh button fetches the production again.
Update Available
When G-Casper Pro is updated while you have it open, a card appears bottom left: "Update available". Until you refresh, changes on that tab are not saved, and any edit you try gets "G-Casper was updated. This change was not saved. Refresh to keep editing." Your earlier edits are already saved.
- Refresh now loads the new version
- Not now hides the card while you finish reading
- A tab left untouched for three minutes, with nothing unsaved, no dialog open and no field in focus, refreshes itself