SPA application (the front)

Version: 0.1 · Last Updated: 2026-08-24 · Status: 🔴 DA REVISIONARE

The stateless door of the SPA world: the spa_connection_id cookie carrying the hosted site's OWN connection id, the two-stage demux between the internal roots and the hosted site, and the HTTP translation of the pool's answers — 503 with Retry-After for a refusal, 502 for a site failure.