Additional URLs do not respect rootPath configuration for OAuth redirect URIs

[adityaraj178]

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
When ArgoCD is configured with a rootPath (also known as [baseHRef]), the OAuth redirect URIs generated for additional URLs do not include the root path. This causes authentication failures when using additional URLs with a configured root path.

Current Behavior
When rootPath is configured (e.g., [argocd]), the redirect URIs for additional URLs are generated as: https://example.com/auth/callback

Instead of the expected: https://example.com/argocd/auth/callback

This only affects additional URLs; the primary URL works correctly.

To Reproduce

• Configure ArgoCD with a rootPath
• Add additional URLs to the configuration
• Attempt to authenticate via one of the additional URLs
• Observe that the OAuth2 redirect URI does not include the root path
• Authentication fails with a redirect URI mismatch error

Expected behavior

All redirect URIs (both for the primary URL and additional URLs) should respect the configured rootPath and generate URLs in the format:

Screenshots

Version

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