I am running in kubernetes and I have a default backend service configured, and my apis have their own Ingress objects which seem to be working and have CORS setup correctly.
But if you happen to call a route that isn't covered by one of the paths in the ingress it gives me a CORS error, which I'm assuming is falling back to the default backend.
So the question is, how can I configure the CORS headers for the default backend service when using the nginx-ingress in kubernetes?