AlinsRan commented on issue #1528:
URL:
https://github.com/apache/apisix-ingress-controller/issues/1528#issuecomment-1354166264
It only takes two steps to reproduce it.
1. ready resource
```yaml
# ingress.yaml
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: httpbin-demo-apisix
spec:
ingressClassName: apisix
rules:
- host: httpbin.org
http:
paths:
- backend:
service:
name: httpbin
port:
number: 80
path: /headers
pathType: Prefix
```
2. `kubectl delete svc httpbin`
3. `kubectl delete -f ingress.yaml`
4. result
```shell
$ curl http://51.159.206.18/headers -H 'Host: httpbin.org'
<html>
<head><title>503 Service Temporarily Unavailable</title></head>
<body>
<center><h1>503 Service Temporarily Unavailable</h1></center>
<hr><center>openresty</center>
<p><em>Powered by <a
href="https://apisix.apache.org/";>APISIX</a>.</em></p></body>
</html>
```
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