Steps to reproduce
Wifi disconnected on my computer.
Made some edits.
Top-right says in red Can’t sync.
After a while a notice pops up saying hasn’t synced for a while, click here to secure your data.
I clicked there.
I’m not sure what it should do, but hopefully it gives helpful advice or an offline save/backup option.
The window advanced to a new address, tried (failed) to load that. I clicked back, and the dynalist URL also failed to load.
(Not surprising because offline.)
Was offline because of a network failure.
Also observed: When the Save Now button appears, (alternately with Can’t Sync) and I click it, nothing happens except the Can’t Sync immediately reappears. It does work if I’m online but not very helpful when offline with Chrome.