#29358·argo-cd

Extension extensions-Rollout.js failed to load: TypeError: Cannot read properties of undefined (reading 'hasOwnProperty')

Author: jsorefCreated Aug 24, 2026Updated Sep 16, 2026

Labelsbugbug/severity:minortriage/pendingcomponent:ui

Checklist:

I've searched in the docs and FAQ for my answer: https://bit.ly/argocd-faq.
I've included steps to reproduce the bug.
I've pasted the output of argocd version.

Describe the bug

Loading the root page triggers an error

To Reproduce

Visit https://cd.apps.argoproj.io/applications (with the browser inspector console open)

Expected behavior

No errors

Screenshots

Version

bash

{
    "Version": "v3.6.0+b5fc12e",
    "BuildDate": "2026-08-13T10:22:54Z",
    "GitCommit": "b5fc12e0155c6a58c0924afc0ec68478cf25da11",
    "GitTreeState": "clean",
    "GoVersion": "go1.26.5",
    "Compiler": "gc",
    "Platform": "linux/amd64",
    "KustomizeVersion": "v5.8.1 2026-02-09T16:15:27Z",
    "HelmVersion": "v4.2.3+g43e8b7f",
    "KubectlVersion": "v0.36.1",
    "JsonnetVersion": "v0.22.0"
}

Logs

javascript

extensions.js:563 Extension extensions-Rollout.js failed to load: TypeError: Cannot read properties of undefined (reading 'hasOwnProperty')
    at Object.<anonymous> (extensions.js:544:6890)
    at n (extensions.js:7:157)
    at Object.<anonymous> (extensions.js:14:63994)
    at n (extensions.js:7:157)
    at Module.<anonymous> (extensions.js:29:12953)
    at n (extensions.js:7:157)
    at Object.<anonymous> (extensions.js:170:4975)
    at n (extensions.js:7:157)
    at Object.<anonymous> (extensions.js:205:1089)
    at n (extensions.js:7:157)
(anonymous)	@	extensions.js:563

Source: argoproj/argo-cd

View original on GitHub View discussion on GitHub