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', $message ); } /** * Prevent the Customizer from being loaded on WordPress versions prior to 3.6. * * @since Twenty Thirteen 1.0 */ function twentythirteen_customize() { wp_die( sprintf( __( 'Twenty Thirteen requires at least WordPress version 3.6. You are running version %s. Please upgrade and try again.', 'twentythirteen' ), $GLOBALS['wp_version'] ), '', array( 'back_link' => true, ) ); } add_action( 'load-customize.php', 'twentythirteen_customize' ); /** * Prevent the Theme Preview from being loaded on WordPress versions prior to 3.4. * * @since Twenty Thirteen 1.0 */ function twentythirteen_preview() { if ( isset( $_GET['preview'] ) ) { wp_die( sprintf( __( 'Twenty Thirteen requires at least WordPress version 3.6. You are running version %s. Please upgrade and try again.', 'twentythirteen' ), $GLOBALS['wp_version'] ) ); } } add_action( 'template_redirect', 'twentythirteen_preview' );