apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: host-app-ingress
  namespace: demo-space
  annotations:
    cert-manager.io/cluster-issuer: letsencrypt-prod
    # ▼▼▼ 核心修复：添加这一行 ▼▼▼
    ingress.kubernetes.io/custom-response-headers: "Content-Security-Policy: upgrade-insecure-requests"
spec:
  rules:
  - host: wt.u9.net3w.com
    http:
      paths:
      - path: /
        pathType: Prefix
        backend:
          service:
            name: host-app-service
            port:
              number: 80
  tls:
  - hosts:
    - wt.u9.net3w.com
    secretName: wt-tls-secret