PostHog Reverse Proxy

[evanjacobson]

Integration: Inline PostHog snippet in public/posthog.js:49, loaded globally via astro.config.mjs. src/components/PostHogScript.astro is a never-imported duplicate — can be deleted. This is a static Astro site with no SSR adapter, deployed on Vercel.

Since Astro static sites have no server-side rewrite capability, use Vercel rewrites which run at the CDN/edge layer without needing an adapter:

1. Create vercel.json at the project root:

{
  "rewrites": [
    { "source": "/ingest/static/:path*", "destination": "https://us-assets.i.posthog.com/static/:path*" },
    { "source": "/ingest/:path*",        "destination": "https://us.i.posthog.com/:path*" }
  ]
}

2. Update public/posthog.js — change api_host and add ui_host:

posthog.init("phc_...", {
  api_host: "https://path.kilo.ai/ingest",
  ui_host: "https://us.posthog.com",
  // ...
});

3. Delete src/components/PostHogScript.astro — dead code, never imported.