Each service now runs behind the prefix it is published under (-http.pathPrefix, or route-prefix plus
external-url for Alertmanager). Without that, three of the four UIs would have loaded at their sub-path and
then fetched their assets from the domain root, so the pages would have come up broken. The prefixes cascade,
so the scrape paths, vmalert's notifier and remote-write URLs, and the deadman's health probes all follow.
The index is diag/index.html mounted into Caddy, not an inline respond: Caddy reads {...} as placeholders and
the page's CSS is full of braces, so inline would have been mangled. It also matches how the gateway, dock and
clips pages are already served.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Brandyn / Techy
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