---
title: "Feature: #33071 - Add the http header \"Content-Language\" when rendering a page"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:feature-33071"
source: "Changelog/7.4/Feature-33071-AddTheHttpHeaderContent-LanguageWhenRenderingAPage.rst"
modified: "2026-09-15T10:46:36+00:00"
---

# Feature: #33071 - Add the http header "Content-Language" when rendering a page

See [forge#33071](https://forge.typo3.org/issues/33071)

## Description

By default a header "Content-language: XX" is sent where "XX" is the iso code of the
sys_language_content (in the sys_language record, it is represented by the sys_language_isocode field),
if that is properly defined by the sys_language record representing the sys_language_uid.
Setting "config.disableLanguageHeader" disables that.

## Impact

By default in new and existing installations a header "Content-language: XX" is sent where "XX" is the iso code of the
sys_language_content if that is properly defined by the sys_language record representing the sys_language_uid.
You must set "config.disableLanguageHeader" to disable that and get previous behavior (no header).