Getting 503 Service Unavailable when accessing route and Network Policies are enabled in RHOCP4

Issue

• When the allow-from-openshift-ingress and deny-by-default network policy is enforced,
• When hitting the route url, 503 error received

# curl -vk https://www.example.com/
* About to connect() to www.example.com port 443 (#0)
*   Trying 10.10.0.1...
* Connected to www.example.com (10.10.0.1) port 443 (#0)
* Initializing NSS with certpath: sql:/etc/pki/nssdb
* skipping SSL peer certificate verification
* SSL connection using TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
* -----  Output Trimmed-----------
* HTTP/1.0 503 Service Unavailable