CORS Policy in NGINX Ingress Controller v5.4.0: Patterns for VirtualServer and Ingress

Starting with NGINX Ingress Controller (NIC) v5.4.0, you can define CORS behavior once in a Policy resource and apply it consistently across both VirtualServer and Ingress traffic paths. Across this blog, we’re focused on: Why Use a Policy For CORS? Many teams start with per-resource tuning and quickly end up with drift.