1. Proposed title of this feature request
Option to turn on/off `accept-invalid-http-request` in OCP router haproxy

2. What is the nature and description of the request?

Or HAProxy is not able to set `accept-invalid-http-request`. 

Customer who would like to access OCP route with other language in request path will fail.
3. Why does the customer need this? (List the business requirements here)
Most of the customer in APAC would use local language in their http request path.

For upstream HAProxy, they could set `accept-invalid-http-request` in haproxy config to make HAProxy accept this kind of request.

But our OpenShift doesn't allow this configuration.

4. List any affected packages or components.

• OpenShift ingress router (HAProxy)

5. Related Case

03222224
02865952