HTTP Headers on liveness/readiness probes not rendering correctly

[jnoordsij]

What happened?

When showing the HTTP Headers of the probes on my Pod, instead of a human-readable output, the display shown is:

HTTP Headers
[object Object]
[object Object]

What did you expect to happen?

An output like e.g.:

HTTP Headers
<name>: <value>
<name2>: <value2>

How can we reproduce it (as minimally and precisely as possible)?

Create a Pod with custom headers on the probe, e.g.

livenessProbe:
  httpGet:
    path: /
    port: 80
    scheme: HTTP

    httpHeaders:
      - name: Host
        value: www.example.com
      - name: X-Forwarded-Proto
        value: https

Anything else we need to know?

No response

What browsers are you seeing the problem on?

Chrome, Firefox

Kubernetes Dashboard version

2.6.0

Kubernetes version

1.24.2

Go version

No response

Node.js version

No response