*/
$wgUseESI = false;
-/**
- * Send the Key HTTP header for better caching.
- * See https://datatracker.ietf.org/doc/draft-ietf-httpbis-key/ for details.
- * @since 1.27
- * @deprecated in 1.32, the IETF spec expired without becoming a standard.
- */
-$wgUseKeyHeader = false;
-
/**
* Add X-Forwarded-Proto to the Vary and Key headers for API requests and
* RSS/Atom feeds. Use this if you have an SSL termination setup
* temporary storage. Preprocessor_DOM generally uses less memory;
* the speed of the two is roughly the same.
*
- * If this parameter is not given, it uses Preprocessor_DOM if the
- * DOM module is available, otherwise it uses Preprocessor_Hash.
+ * If this parameter is not given, it uses Preprocessor_Hash.
*
* The Preprocessor_DOM class is deprecated, and will be removed in a future
* release.