idea 46 · build only
Offline fallback
A cached guide answers where the galleries have no signal.
American Museum of Natural History, Explorer
More than 700 Bluetooth beacons across the halls exist because positioning indoors does not work otherwise. Neither does the network.
https://www.amnh.org/explore/news-blogs/news-posts/bluetooth-beacons-help-navigate-museum-hallsEverything loads
Labels, the audio transcript, the map and the object images all come down as needed.
The pill also follows the real connection. Turn your Wi-Fi off and it changes on its own.
Two things are being demonstrated: the app degrades to what it cached, and it names what is missing instead of showing a spinner over it. In production a service worker holds the cached half. The toggle is only here so you can see it without turning your Wi-Fi off, and the real online and offline events are wired up too.