add_header Link "<[[path|/main.css]]>; rel=preload; as=style; integrity=[[integrity|/main.css]], </fonts/roboto-v30-regular-latin.woff2>; rel=preload; as=font; crossorigin, </fonts/roboto-v30-bold-latin.woff2>; rel=preload; as=font; crossorigin, <[[path|/mask-icon.svg]]>; rel=preload; as=image; fetchpriority=high$preload_resources_uri" always;