---
issue: 084
title: "Frontend: console.error/warn suppression masks production errors"
severity: medium
domain: Observability
labels: [bug, frontend, logging]
status: open
created: 2026-05-30
source: Full Codebase Audit 2026-05-30
---

# Frontend: console.error/warn suppression masks production errors

**Severity:** medium
**Domain:** Observability
**Labels:** bug, frontend, logging

## Description

`src/app/layout.tsx:95` overrides `console.error` and `console.warn` globally in all environments. In production this suppresses real errors from reaching Sentry or developer tools, making production issues invisible. See also ISSUE-120 (the polling suppression interval that triggers this).

## Options

1. Remove the global override in production entirely (allow real errors through to Sentry).
2. Scope suppression to the specific known Emotion/MUI warning string only.
3. Keep dev-only suppression, none in production.

## Recommendation

Remove global suppression in production and, at most, filter the one known benign warning by message substring in development. Coordinate with ISSUE-120 since it is the same script.

## Affected Files

- `frontend/src/app/layout.tsx:95`

## References

- [Full Codebase Audit 2026-05-30](../09%20-%20Audits/Full%20Codebase%20Audit%20-%202026-05-30.md) — DEC-10
- [[ISSUE-120-frontend-50ms-setinterval-console-suppression-script-in-root-l|ISSUE-120]]