# Which Problems Are Solved
- If you operate Zitadel behind a Reverse Proxy or Ingress inside a
Kubernetes cluster,
you may encounter an Error like `upstream sent too big header while
reading response header from upstream`
- The Docs explain how to solve it
# How the Problems Are Solved
- Adding Troubleshooting Docs for too big upstream header, so people
that search for it find a solution.
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Co-authored-by: Elio Bischof <[email protected]>
