From 559f00a022ffa14e70df8f7ae8a1b4d8f23ef05e Mon Sep 17 00:00:00 2001
From: xiaoxiyao <xiyao.luoxiao@gmail.com>
Date: Mon, 23 Sep 2024 22:15:41 +0800
Subject: [PATCH] feat: defer external css

---
 layouts/partials/helper/external.html | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/layouts/partials/helper/external.html b/layouts/partials/helper/external.html
index 88d9525..4add24e 100644
--- a/layouts/partials/helper/external.html
+++ b/layouts/partials/helper/external.html
@@ -13,12 +13,14 @@
             </script>
         {{- else if eq .type "style" -}}
             <link 
-                rel="stylesheet" 
+                rel="preload" 
                 href="{{ .src }}"
+                as="style"
                 {{- with .integrity -}}
                 integrity="{{ . }}"
                 {{- end -}}
                 crossorigin="anonymous"
+                onload="this.onload=null;this.rel='stylesheet'"
             >
         {{- else -}}
             {{- errorf "Error: unknown external resource type: %s" .type -}}