The frontend `app.baseUrl` mismatches the backend route address, e.g. `app.baseUrl = https://rhdh-developer-hub-rhdh.<base_domain>` while route ingress is 'https://rhdh-redhat-developer-hub-rhdh.<base_domain>' for deployment name 'rhdh' and namespace 'rhdh'.

1.2-105.1719294777
helm chart 1.2.1

always, with given setup

1. Create `rhdh` namespace
1. Create configmap:
~~~
kind: ConfigMap
apiVersion: v1
metadata:
  name: app-config-rhdh
  namespace: rhdh
data:
    app-config.extra.yaml: |
      app:
        title: Red Hat Developer Hub
      integrations:
        github:
          - host: github.com
            apps:
              - appId: ${GITHUB_APP_APP_ID}
                clientId: ${GITHUB_APP_CLIENT_ID}
                clientSecret: ${GITHUB_APP_CLIENT_SECRET}
                webhookUrl: ${GITHUB_APP_WEBHOOK_URL}
                webhookSecret: ${GITHUB_APP_WEBHOOK_SECRET}
                privateKey: |
                  ${GITHUB_APP_PRIVATE_KEY}
      auth:
        # see https://backstage.io/docs/auth/ to learn about auth providers
        environment: development
        providers:
          github:
            development:
              clientId: ${GITHUB_APP_CLIENT_ID}
              clientSecret: ${GITHUB_APP_CLIENT_SECRET}
      enabled:
        github: true
      proxy:
        endpoints:
          '/quay/api':
            target: 'https://quay.io'
            headers:
              X-Requested-With: 'XMLHttpRequest'
              Authorization: 'Bearer ${QUAY_API_TOKEN}'
            changeOrigin: true
            # Change to "false" in case of using self hosted quay instance with a self-signed certificate
            secure: true
      quay:
        # The UI url for Quay, used to generate the link to Quay
        uiUrl: 'https://quay.io'
      techdocs:
        builder: 'local'
        generator:
          runIn: 'local'
        publisher:
          type: 'local'
~~~
2. Create secret `rhdh-secret` under `rhdh` namespace with env vars used under `app-config-rhdh` configmap
3. `helm repo add openshift-helm-charts https://charts.openshift.io/`
4. `helm show values openshift-helm-charts/redhat-developer-hub > values.yaml`
5. Update `.global.clusterRouterBase` under `values.yaml` to the base domain of the active cluster
6. Update `.upstream.backstage.extraEnvVarsSecrets` under `values.yaml` to include `rhdh-secret`
7. Update `.upstream.backstage.extraAppConfig` under `values.yaml` to include `app-config-rhdh` configmap with `app-config.extra.yaml` reference
8. `helm upgrade -i rhdh --namespace rhdh -f values.yaml openshift-helm-charts/redhat-developer-hub`

app.baseUrl is set to 'https://rhdh-developer-hub-rhdh.<base_domain>'

error message:
  Login failed; caused by NotAllowedError: Origin 'https://rhdh-redhat-developer-hub-rhdh.<base_domain>' is not allowed

app.baseUrl is set to 'https://rhdh-redhat-developer-hub-rhdh.<base_domain>'

Should login successfully.

**Workaround**: Overriding with `.global.host` produces expected results and the bug only seems to effect deployments when using default values such as setting the base domain with `.global.clusterRouterBase`.