FunTester

Nov 11, 2020 · Industry Insights

Why Did Our Banner Turn Gray? A Real‑World Debugging Tale of AdGuard Blocking Chrome

A web testing engineer recounts how a user‑reported gray banner on a Chrome browser led to a step‑by‑step investigation that ultimately uncovered the AdGuard extension as the culprit, illustrating practical troubleshooting techniques for front‑end issues in production.