Hi!
I blame latency here; the server seems to be located in San Francisco.
WDQS servers are in Virginia, AFAIK: https://wikitech.wikimedia.org/wiki/Eqiad_cluster
Also, looks like I've underestimated the interest the demo endpoint has, so I'll do the following:
1. Create a separate VM for it so I won't break it unintentionally 2. Make it so it'd be easy to update it to latest code (right now it involves several manual steps and downtime) and actually update it.
That means also sometime today I'll have to take it down briefly to transfer the name to the new setup, but should be a very brief interruption. Will update once it's done.