ALB Ingress后的Keycloak无法加载管理面板及静态资源

我正尝试在EKS上部署Bitnami Keycloak Helm Chart（14.1.0版本），并通过ALB Ingress对外提供服务。负载均衡控制器及external dns已正确安装配置，Helm配置如下：

auth:
  adminUser: admin
  adminPassword: "123456

production: true
proxy: edge

postgresql:
  enabled: true
  auth:
    postgresPassword: "123456"
    password: "123456"

cache:
  enabled: false

service:
  type: LoadBalancer

ingress:
  enabled: true
  servicePort: http
  ingressClassName: alb
  hostname: 'keycloak.XXX.XXX'
  path: '/'
  pathType: Prefix
  annotations:
    alb.ingress.kubernetes.io/scheme: internet-facing
    alb.ingress.kubernetes.io/ip-address-type: ipv4
    alb.ingress.kubernetes.io/load-balancer-attributes: 'routing.http.drop_invalid_header_fields.enabled=true'
    alb.ingress.kubernetes.io/backend-protocol: http
    alb.ingress.kubernetes.io/inbound-cidrs: 0.0.0.0/0
    alb.ingress.kubernetes.io/target-type: ip
    alb.ingress.kubernetes.io/listen-ports: '[{"HTTPS": 443}]'
    alb.ingress.kubernetes.io/certificate-arn: arn:aws:acm:XXXXXXXXXXX
    external-dns.alpha.kubernetes.io/hostname: "keycloak.XXX.XXX"

当前遇到的问题：

• Keycloak首页可加载但无图片
• 访问管理控制台返回404错误

更新 #

• 将service类型切换为NodePort、target-type改为instance后问题仍未解决

内容的提问来源于stack exchange，提问作者Majid Azimi