class-jms-enqueue.php

function preload_fonts() {

		$preload = "<link rel='preconnect' href='https://fonts.gstatic.com' crossorigin />\n";

		$preload .= sprintf(
			'<link rel="preload" as="style" href="%1$s" />%2$s',
			$this->get_add_query_arg( $this->font_args, $this->font_url ),
			"\n"
		);

		$preload .= sprintf(
			'<link rel="stylesheet" href="%1$s" media="print" onload="this.media=\'all\'" />%2$s',
			$this->get_add_query_arg( $this->font_args, $this->font_url ),
			"\n"
		);

		$preload .= sprintf(
			'<noscript><link rel="stylesheet" href="%1$s"/></noscript>%2$s',
			$this->get_add_query_arg( $this->font_args, $this->font_url ),
			"\n"
		);

		echo $preload;
	}