Uncaught (in promise) TypeError: can't access property 0, this.state.error.metadata.headersMap['grpc-message'] is undefined

[jankeromnes]

Describe the bug

Sometimes, loading a Werft job shows just a blank page.

Looking into the console, I see a bunch of:

Uncaught (in promise) TypeError: can't access property 0, this.state.error.metadata.headersMap['grpc-message'] is undefined

Reloading once typically helps.

To Reproduce

Steps to reproduce the behavior:

1. Load a Werft job page
2. Sometimes it's blank

Expected behavior

It should never be blank.

Screenshots

Additional context