Git Web UI: Response error display due to loss of authentication

In the commit tree history view in the Web UI (any branch), I clicked on a commit and received this error popup:

I had left the window open overnight and the session understandably expired. I wonder if there is a better way to handle this kind of response? The markers I would typically look for (non 200 status or different content types) were the same between the unauthenticated and authenticated responses, so I'm not sure how the web app would be able to tell the difference.

Ideally, I think the web app should redirect back to the primary login page rather than showing the raw html like this.

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Module Version: 2.12.2