UI crash with multi-source Argo CD apps: `can't access property "repoURL", e.spec.source is undefined`

[Timpan4]

I’m seeing Cased CD’s Applications view crash when it encounters a multi‑source Argo CD Application (one that uses spec.sources instead of spec.source).

Environment

• Cased CD:
  • Chart: cased/cased-cd 0.2.17
  • Installed via Helm with:

    argocd:
      insecure: true
      server: http://argocd-server.argocd.svc.cluster.local:80

• Argo CD:
  • Version: v3.2.1
  • Argo’s own UI and API work fine

What happens

1. Log into Cased CD.

2. Open the Applications view.

3. As soon as the list of apps loads, the UI shows:

   Something went wrong!
   can't access property "repoURL", e.spec.source is undefined

4. The browser network tab shows the Argo CD /applications API returning 200 with valid JSON.

5. Accessing Argo CD’s UI directly works with no issues.

So this looks like a frontend error in Cased CD, not a backend/API problem.

Example of a failing app

The crash only happens when there’s at least one multi‑source Application in the cluster, i.e. spec.source = null and spec.sources is set.

Here’s a reduced example with URLs anonymized:

{
  "metadata": {
    "name": "example-multi-source-app",
    "namespace": "argocd"
  },
  "spec": {
    "source": null,
    "sources": [
      {
        "repoURL": "https://example.com/helm-charts",
        "chart": "example-chart",
        "targetRevision": "1.2.3",
        "helm": {
          "valuesObject": {
            "some": "values"
          }
        }
      },
      {
        "repoURL": "https://example.com/git.git",
        "path": "example-app",
        "targetRevision": "HEAD"
      }
    ]
  }
}

This is the standard Argo CD 3.x multi‑source shape. Argo CD’s own UI handles it without any problems.

Expected vs actual

Expected:

• Cased CD should handle both:
  • single‑source apps (spec.source), and
  • multi‑source apps (spec.sources).
• The UI should not assume spec.source is always non‑null before accessing spec.source.repoURL.

Actual:

• As soon as there’s at least one app with spec.source = null and spec.sources defined, the Applications view crashes with:

  can't access property "repoURL", e.spec.source is undefined

• No errors from the Argo CD API, just a frontend exception in Cased CD.

Request

• Please add support for multi‑source Applications (spec.sources) and/or make the frontend null‑safe when spec.source is null.
• If there’s a specific Cased CD version that officially supports Argo CD 3.2.x and multi‑source apps, a note in the docs or chart README would be helpful.

[tnm]

Thanks for the report! Fixed in #54; new release shortly.

[tnm]

Out in 0.2.18! 🚢