tl;dr

When running airgapped (i.e., no Internet connection) the editor fails to load. There's Monaco-related errors in DevTools and other errors that don't show up if I repeat the same steps while Internet-connected.

Details

Repro is with GA Zui v1.4.1. I bumped into this while trying to reproduce a problem reported in a community Slack thread.

In the attached video I'm launching Zui fresh after having just installed it and while having no working Internet connectivity.

While the mere launch of the app seems healthy, I do see some errors in DevTools right out of the gate, and I don't see those same errors if I launch when Internet-connected. They may be unrelated to the editor problem, but I figured I'd point them out regardless if we want to better understand their origin and maybe catch/silence these in some way.

The more concerning problem is after I load some data and the editor area is populated with text that just says "Loading..." The DevTools console shows errors related to Monaco, among others.

If there's some reason why we simply need Internet connectivity for the app to work, we'd certainly be free to set that expectation with users, but ideally we'd want to fail gracefully in a situation like this so the user is informed what's wrong.