skyai-cloud's Vite dev server hops ports (5173 -> 5174 -> ...) when one is taken, so a fixed localhost:5173 allowlist breaks the browser's cross-origin calls. Allow any http://localhost:<port> in dev; the *.sky-ai.com rule is unchanged for deployed origins. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>