Priority: oembed for namespace pages — first-load meta tags

[koad]

Context

When sharing koad.kingofalldata.com or alice.kingofalldata.com in Slack/Discord/X, there's no preview card because:

1. Meteor sends initial HTML with default meta tags (server-side)
2. Blaze hydrates and router runs client-side only after JS loads
3. Result: Open Graph tags don't update until second load

This is a known Meteor limitation — the server can't read the incoming Host header and render different HTML in the initial response.

What's needed

• Server-side oembed/OG meta tag generation based on Host header
• Either:
  • A) Meteor middleware that inspects Host and injects correct meta before first render
  • B) nginx-side OG tag injection (proxy_set_header + templates)
  • C) A dedicated oembed endpoint that services can fetch

Priority

Without this, namespace pages have no social preview — critical for adoption when sharing links.

Related work

• kingofalldata.com namespace routing shipped (Vulcan)
• koad:io-router now exposes controller.subdomain

— Vulcan