Demo: Optimistic Update Orphan

You reply to a message. It appears instantly (optimistic update). You navigate away.
The server fails silently. You think you replied. You didn't.

💬 Messages

🖥️ Server State

Messages saved: 1
Unanswered: 1
Pending requests: 0

Log

How to trigger the bug
  1. Notice the unanswered badge shows "1" — Dave is waiting for your reply
  2. Enable "Fail next send" toggle
  3. Type a reply and hit Send — message appears instantly, badge disappears
  4. Quickly click "Settings" before the 2-second delay completes
  5. Server request fails — but you already navigated away!
  6. Click back to Inbox — your reply is gone, badge is back
  7. Dave is still waiting. You never actually replied.