# Security headers: own the final response

https://thiago.limaesilvatecnologia.com.br/en/artigos/headers-ownership/

Published: 2026-09-12

CDN, proxy and application may produce different settings.

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Reading-path month: March 2026

Collection published on September 12, 2026. Months organize the reading path; they are not earlier publication dates.

A short architecture article. The technical reference supports the topic; hypothetical scenarios and assessment proposals are editorial analysis, not accounts of personal implementations.

## The architecture decision

Correct application configuration can be modified by intermediaries. Review the response reaching the browser, including error pages.

## Practical application

Editorial proposal: assign an owner to each header and record its configuration point. In a hypothetical CDN-and-proxy architecture, avoid competing settings whose precedence nobody can explain.

## How to verify

Compare successful responses, redirects and failures in testing, including edge-served pages. Evidence should demonstrate consistency by route and purpose, without assuming every response needs an identical policy. Changes must consider functionality depending on browser behavior.

## Sources

- [OWASP — HTTP Headers Cheat Sheet](https://cheatsheetseries.owasp.org/cheatsheets/HTTP_Headers_Cheat_Sheet.html). Accessed: 2026-09-12.

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