Offline and sync
Contals keeps every open board in sync in real time: your changes appear immediately on your screen and are confirmed by the server a moment later, and other people’s changes arrive on their own. If the connection drops, the board stays readable from a local copy, but changes need a connection.
The status badge
Section titled “The status badge”| Badge | Meaning |
|---|---|
| Live | Connected; changes are saved and shared within a moment |
| Connecting… | Opening the connection |
| Reconnecting… changes are kept | The connection dropped briefly; your recent changes wait and are sent when it is back |
| Offline – read-only, as of … | No connection; you see the saved copy from the time shown |
| … unsaved | Number of your changes still waiting for confirmation |
When the connection drops
Section titled “When the connection drops”- Changes you made just before stay on screen and are sent automatically when the connection is back.
- If the connection stays away, the board switches to read-only and shows how fresh the copy is.
- When you leave a page with unsaved changes, Contals warns you.
Rejected changes
Section titled “Rejected changes”The server checks every change. If one cannot be saved – you lack the permission, the card was archived meanwhile, a board limit is reached – Contals undoes it on your screen and says why. Your other changes are not affected.
The local copy
Section titled “The local copy”Boards you opened are kept in your browser (IndexedDB) so they open fast and stay readable offline. On a shared device, no copies are kept. If someone removes your access, the local copy is deleted.
Several tabs
Section titled “Several tabs”You can open the same board in several tabs; each stays in sync.