Description of problem:


Version-Release number of selected component (if applicable):
4.6.0-0.nightly-2020-07-21-200036

How reproducible:
Always

Steps to Reproduce:
1. install a cluster behind https proxy
apiVersion: v1
controlPlane:
  architecture: amd64
  hyperthreading: Enabled
  name: master
  replicas: 3
compute:
- architecture: amd64
  hyperthreading: Enabled
  name: worker
  replicas: 0
metadata:
  name: jialiu-6474
platform:
  none: {}
pullSecret: HIDDEN
additionalTrustBundle: |
  -----BEGIN CERTIFICATE-----
  <--snip-->
  -----END CERTIFICATE-----
proxy:
  httpProxy: http://proxy-user1:XXX@10.0.77.163:3128
  httpsProxy: https://proxy-user1:XXXX@10.0.77.163:3130   ---> This is a real https proxy
  noProxy: test.no-proxy.com
networking:
  clusterNetwork:
  - cidr: 10.128.0.0/14
    hostPrefix: 23
  serviceNetwork:
  - 172.30.0.0/16
  networkType: OpenShiftSDN
  machineNetwork:
  - cidr: 10.0.0.0/16
fips: true
publish: External
baseDomain: qe.devcluster.openshift.com
sshKey: ssh-rsa YYYYYYYZZZZZZ openshift-qe
2. Trigger installation
3. 

Actual results:
$ openshift-install wait-for install-complete --dir '/home/installer1/workspace/Launch Environment Flexy/workdir/install-dir'
level=info msg="Waiting up to 30m0s for the cluster at https://api.jialiu-6474.qe.devcluster.openshift.com:6443 to initialize..."
E0722 08:06:35.085767    5899 reflector.go:307] k8s.io/client-go/tools/watch/informerwatcher.go:146: Failed to watch *v1.ClusterVersion: Get "https://api.jialiu-6474.qe.devcluster.openshift.com:6443/apis/config.openshift.io/v1/clusterversions?allowWatchBookmarks=true&fieldSelector=metadata.name%3Dversion&resourceVersion=19598&timeoutSeconds=480&watch=true": net/http: TLS handshake timeout
level=info msg="Cluster operator authentication Progressing is True with OAuthVersionRoute_WaitingForRoute: OAuthVersionRouteProgressing: Request to \"https://oauth-openshift.apps.jialiu-6474.qe.devcluster.openshift.com/healthz\" not successfull yet"
level=info msg="Cluster operator authentication Available is False with OAuthVersionRoute_RequestFailed: OAuthVersionRouteAvailable: HTTP request to \"https://oauth-openshift.apps.jialiu-6474.qe.devcluster.openshift.com/healthz\" failed: proxyconnect tcp: x509: certificate signed by unknown authority"
level=info msg="Cluster operator insights Disabled is False with AsExpected: "
level=fatal msg="failed to initialize the cluster: Cluster operator authentication is still updating"

[root@preserve-jialiu-ansible ~]# oc describe co authentication
Name:         authentication
Namespace:    
Labels:       <none>
Annotations:  exclude.release.openshift.io/internal-openshift-hosted: true
API Version:  config.openshift.io/v1
Kind:         ClusterOperator
Metadata:
  Creation Timestamp:  2020-07-22T11:52:46Z
  Generation:          1
  Managed Fields:
    API Version:  config.openshift.io/v1
    Fields Type:  FieldsV1
    fieldsV1:
      f:metadata:
        f:annotations:
          .:
          f:exclude.release.openshift.io/internal-openshift-hosted:
      f:spec:
      f:status:
        .:
        f:extension:
        f:versions:
    Manager:      cluster-version-operator
    Operation:    Update
    Time:         2020-07-22T11:52:46Z
    API Version:  config.openshift.io/v1
    Fields Type:  FieldsV1
    fieldsV1:
      f:status:
        f:conditions:
        f:relatedObjects:
    Manager:         authentication-operator
    Operation:       Update
    Time:            2020-07-22T12:06:13Z
  Resource Version:  20249
  Self Link:         /apis/config.openshift.io/v1/clusteroperators/authentication
  UID:               4ff0a43c-e589-4bcd-8961-ca702bc77317
Spec:
Status:
  Conditions:
    Last Transition Time:  2020-07-22T12:06:09Z
    Reason:                AsExpected
    Status:                False
    Type:                  Degraded
    Last Transition Time:  2020-07-22T12:05:26Z
    Message:               OAuthVersionRouteProgressing: Request to "https://oauth-openshift.apps.jialiu-6474.qe.devcluster.openshift.com/healthz" not successfull yet
    Reason:                OAuthVersionRoute_WaitingForRoute
    Status:                True
    Type:                  Progressing
    Last Transition Time:  2020-07-22T12:05:26Z
    Message:               OAuthVersionRouteAvailable: HTTP request to "https://oauth-openshift.apps.jialiu-6474.qe.devcluster.openshift.com/healthz" failed: proxyconnect tcp: x509: certificate signed by unknown authority
    Reason:                OAuthVersionRoute_RequestFailed
    Status:                False
    Type:                  Available
    Last Transition Time:  2020-07-22T11:56:15Z
    Reason:                AsExpected
    Status:                True
    Type:                  Upgradeable
  Extension:               <nil>
  Related Objects:
    Group:      operator.openshift.io
    Name:       cluster
    Resource:   authentications
    Group:      config.openshift.io
    Name:       cluster
    Resource:   authentications
    Group:      config.openshift.io
    Name:       cluster
    Resource:   infrastructures
    Group:      config.openshift.io
    Name:       cluster
    Resource:   oauths
    Group:      route.openshift.io
    Name:       oauth-openshift
    Namespace:  openshift-authentication
    Resource:   routes
    Group:      
    Name:       oauth-openshift
    Namespace:  openshift-authentication
    Resource:   services
    Group:      
    Name:       openshift-config
    Resource:   namespaces
    Group:      
    Name:       openshift-config-managed
    Resource:   namespaces
    Group:      
    Name:       openshift-authentication
    Resource:   namespaces
    Group:      
    Name:       openshift-authentication-operator
    Resource:   namespaces
    Group:      
    Name:       openshift-ingress
    Resource:   namespaces
Events:         <none>


Expected results:
auth operator get ready behind https proxy

Additional info: