Preload SiteOrigin slider font

function siteorigin_preload_slider_font() {	?>
	<link rel="preload" href="<?php echo plugin_dir_url( SOW_BUNDLE_BASE_FILE ); ?>css/slider/fonts/slider.woff" as="font">
<?php }
add_action( 'wp_head', 'siteorigin_preload_slider_font' );