Observed while staging generators. on cochi: with the nginx vhost installed
but the container not yet deployed, caddy answers an unmatched Host with an
EMPTY 200. Both / and the mirror path returned "HTTP 200, 0 bytes" while
nothing at all was running.
So the guidance to probe a mirror path instead of / was necessary but not
sufficient — a status-code-only check reports green on a completely absent
service. Assert the body.
Same failure family as the filestash green-monitor: the server answering
is not the app working.
oier
00e9815307