The museum inspects itself. Each line is a reading taken on this device, in this browser, right now — checked, not guessed. Re-run any time.
Condition Report
…running checks…
Device State (the gates)
reading…
The Offline Drill
1. Confirm the Service worker + Precache rows read green above. 2. Airplane mode ON (Wi-Fi off too). 3. Reload this page. It should load instantly from cache and the
Network row should read offline — served from cache. 4. Tap Play and run a full show with the house deck — no signal, full game. 5. Airplane mode OFF. You've verified the offline museum.
Exits
→ Play the game · → Front door
To install: Chrome menu ⋮ → Add to Home screen (reads "Install app" when the manifest checks pass).