The SPA computes its redirect origin as (force_ssl ? "https://" : "http://")
+ general.host. With host set to "https://files.${BASE_DOMAIN}" that produced
"http://https://files.ulicraft.net", so every client-side redirect broke and
the page never routed anywhere.
Server-side this was invisible: SecureOrigin strips the scheme before the
Host check, so `curl /` returned 200, the API answered, and the uptime
monitor stayed green — only real browsers failed. The tell is a
`POST /report?...msg=Redirecting to http://https://...` line in the log.
Set host to the bare hostname and force_ssl=true (which the origin needs to
build https://, and which only emits an HSTS header — it does not redirect,
so it can't loop behind the plain-http nginx→caddy hop).
Verified: origin is now "https://files.ulicraft.net"; login + ls still work.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Oier Bravo Urtasun
10b86ae23e