Capturing 5xx Errors with a Debug Server – NGINX Community BlogIf a 5xx happens and no one is around to see it, is it still an error? No matter how rigorously or how long you test your software, there’s nothing like the production environment to uncover bugs. Whether it’s caused by a weird race condition that happens only under the unpredictable concurrency patterns of live traffic, or an input validation blow‑up for data you couldn’t imagine a user ever typi
