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每当从 auth-url 收到的 401,402、403..etc http 状态响应（除了 400 入口）正确地向客户端发送身份验证响应，但如果 400 错误请求入口发送为 500 内部服务器错误，并且它也不向客户端返回身份验证响应*

请找到入口文件、日志和响应

入口文件

apiVersion: networking.k8s.io/v1beta1
kind: Ingress
metadata:
  name: ingress-stl-dsm
  namespace: pfttx
  annotations:
    nginx.ingress.kubernetes.io/auth-url: http://pniauthapp.pfttx.svc.cluster.local:8080/sterlite/pniaa/authenticateUrl$request_uri
    nginx.ingress.kubernetes.io/enable-cors: "true"
    nginx.ingress.kubernetes.io/cors-allow-methods: "PUT, GET, POST, OPTIONS, DELETE"
    nginx.ingress.kubernetes.io/proxy-read-timeout: "300"
    nginx.ingress.kubernetes.io/rewrite-target: /$2

spec:
  rules:
  - host: demo-routing-aks-ingress.eastus.cloudapp.azure
    http:
      paths:
      - path: /(sterlite/[a-zA-Z0-9]{3})(/dsm/.*)
        backend:
          serviceName: dsm-svc
          servicePort: 32000

入口日志

    10.60.66.147 - - [03/Nov/2021:10:28:29 +0000] "GET /sterlite/co1/dsm/v1/fetch_olt_list HTTP/1.1" 400 0 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.54 Safari/537.36" 0 0.020 [pfttx-dsm-svc-32000] [] 10.97.137.97:8080 0 0.020 400 20572df79a2e6788bc1df5a4f1e383db
    2021/11/03 10:28:29 [error] 1435#1435: *181347 auth request unexpected status: 400 while sending to client, client: 10.60.66.147, server: demo-routing-aks-ingress.eastus.cloudapp.azure, request: "GET /sterlite/co1/dsm/v1/fetch_olt_list HTTP/1.1", host: "demo-routing-aks-ingress.eastus.cloudapp.azure:32355"
    10.60.66.147 - - [03/Nov/2021:10:28:29 +0000] "GET /sterlite/co1/dsm/v1/fetch_olt_list HTTP/1.1" 500 579 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.54 Safari/537.36" 591 0.020 [pfttx-dsm-svc-32000] [] - - - - 20572df79a2e6788bc1df5a4f1e383db

每当从 auth-url 收到的 401,402、403..etc http 状态响应（除了 400 入口）正确地向客户端发送身份验证响应，但如果 400 错误请求入口发送为 500 内部服务器错误并且它不向客户端返回身份验证响应

回复：

<html>
    <head>
        <title>500 Internal Server Error</title>
    </head>
    <body>
        <center>
            <h1>500 Internal Server Error</h1>
        </center>
        <hr>
        <center>nginx/1.19.0</center>
    </body>
</html>
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