Nginx ingress controller(configured with "custom-http-errors") should return original error code instead of 200

[chestack]

Is this a BUG REPORT or FEATURE REQUEST? (choose one):

Bug about custom-http-errors

NGINX Ingress controller version:
any version with "custom-error-code" configuration

What happened:
Now nginx return 200 instead of real error http codes if configured custom-http-errors
ref: kubernetes-retired/contrib#2285

**Note: it works but it does not returns 200 instead of the error code. That's the reason of the internal request.

What you expected to happen:
Return real http error code

[antoineco]

@aledbf this can be closed.