From 25e0f87d97ff31a1ea3228fe55047a52d18f08da Mon Sep 17 00:00:00 2001
From: Codex <codex@localhost>
Date: Fri, 30 Oct 2026 11:57:35 +0800
Subject: [PATCH] Cache successful static images without caching missing-file
 errors

---
 docs/deployment/illustrations-static.nginx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/deployment/illustrations-static.nginx b/docs/deployment/illustrations-static.nginx
index add3da9a..8a75db38 100644
--- a/docs/deployment/illustrations-static.nginx
+++ b/docs/deployment/illustrations-static.nginx
@@ -4,7 +4,7 @@ location ^~ /images/illustrations/ {
     if ($uri !~ "^/images/illustrations/[a-f0-9]{64}\.(webp|png|jpg|gif)$") { return 404; }
     try_files $uri =404;
     etag on;
-    add_header Cache-Control "public, max-age=31536000, immutable" always;
+    add_header Cache-Control "public, max-age=31536000, immutable";
     add_header X-Content-Type-Options nosniff always;
     add_header X-Illustration-Delivery static always;
 }