header( "Content-type: $mimetype; charset=UTF-8" );
// Set a sane filename
- $exts = MimeMagic::singleton()->getExtensionsForType( $mimetype );
+ $exts = MediaWiki\MediaWikiServices::getInstance()->getMimeAnalyzer()
+ ->getExtensionsForType( $mimetype );
$ext = $exts ? strtok( $exts, ' ' ) : 'xml';
header( "Content-Disposition: inline; filename=\"feed.{$ext}\"" );