TYPO3 v15 dev-main snapshot ()

2026-08-10 22:31:09 +02:00
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+.. include:: /Includes.rst.txt
+
+.. _breaking-97550-1651697278:
+
+========================================================================
+Breaking: #97550 - TypoScript option config.disableCharsetHeader removed
+========================================================================
+
+See :issue:`97550`
+
+Description
+===========
+
+The TypoScript flag :typoscript:`config.disableCharsetHeader` has been completely removed
+from TYPO3 Core.
+
+This option was used to avoid sending HTTP headers of type `Content-Type` to
+the client. This flag was mainly used to overcome a technical limitation to
+override the Content-Type information back in TYPO3 v4.x.
+
+Impact
+======
+
+TYPO3 now always sends the `Content-Type` header to the client in the TYPO3
+Frontend.
+
+Affected installations
+======================
+
+TYPO3 installations having this option enabled via TypoScript.
+
+Migration
+=========
+
+It is not needed to set this option. Even when Extbase plugins return JSON-based
+Responses, the Content-Type header is already modified.
+
+In special cases, when custom headers are required, it is possible to modify
+the headers via a PHP-based PSR-15 middleware, or via TypoScript with
+"config.additionalHeaders".
+
+.. index:: TypoScript, NotScanned, ext:frontend