Gitea raw file responses do not send Access-Control-Allow-Origin, so
browser fetches from the Vercel-served status page were blocked
cross-origin. Add a Vercel rewrite that maps /data/(.*) ->
git.moleculesai.app/molecule-ai/molecule-ai-status/raw/branch/main/$1
so the browser only sees same-origin requests; Vercel handles the
upstream fetch server-side and returns the body to the browser.
Tradeoff
- Adds one network hop (browser -> Vercel edge -> Gitea -> Vercel ->
browser). Vercel caches per the Cache-Control: public, max-age=60
header on /data/, so steady-state is one upstream hit per minute
per file. Acceptable.
- Decouples the page from Gitea CORS posture — if/when Gitea ships
Access-Control-Allow-Origin headers (probably correct
long-term), the page can be flipped back to direct fetch by
removing the rewrite.
What did NOT change: probe binary, cron, file paths in history/,
.upptimerc.yml. The data flow is identical; only the URL the
browser uses changed.
Single-page status dashboard for Molecules AI services. Pure static
HTML+CSS+JS — zero build step, zero dependencies. Reads probe results
directly from public Gitea raw URLs at runtime.
Files:
- site/index.html: structure + embedded CSS (light/dark via prefers
-color-scheme; ~110 lines styling)
- site/app.js: fetches .upptimerc.yml + per-site history JSONL,
renders rows + summary + 24h-history sparkline, auto-refreshes
every 5 min (matches probe cadence)
- site/vercel.json: static-site config + security headers
Why no framework
- Page must load fast and never lie. React/Vue would be cargo-cult
at this scale (3 visible elements, 1 data source).
- Plain DOM + fetch removes the supply-chain surface a JS framework
drags in. Zero npm deps, zero lockfile, zero CI build.
Slugify rule mirrors the probe binary's slugify() in
cmd/probe/main.go — both must agree on the file naming for
history/<slug>.jsonl to round-trip cleanly.
Out of scope (separate PRs / follow-ups)
- Vercel project configuration + deploy (next commit)
- Custom domain status.moleculesai.app
- Historical data migration from old upptime JSON format
- Alerting / RSS / status-as-API endpoints
