How One Team Built a Release Gate for Expo Router and Cloudflare Worker Apps

A development team has published a detailed breakdown of the release-validation process used for a starter package combining Expo Router and a Cloudflare Worker built with Hono. The gate checks include deterministic module generation across all valid combinations, 37 behavior tests covering authentication, file handling, and webhooks, and strict SSRF protections via an operator allowlist that rejects non-HTTPS URLs, IP literals, and redirects. Private file storage on R2 is enforced through authenticated Worker routes, with tests confirming that unauthenticated and cross-session reads both fail. A final audit of the repository root, generated Worker, and Expo app found zero high or critical vulnerabilities, with 13 moderate findings limited to the app layer.