From bfd984221e2a020039f31f04584e981dfed95fc5 Mon Sep 17 00:00:00 2001
From: bluwy <bjornlu.dev@gmail.com>
Date: Fri, 23 Dec 2022 22:33:19 +0800
Subject: [PATCH] fix: optional chain importedCss access [skip ci]

---
 packages/vite/src/node/plugins/css.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/vite/src/node/plugins/css.ts b/packages/vite/src/node/plugins/css.ts
index 6e5ba2e06ec2df..142a696662f5e3 100644
--- a/packages/vite/src/node/plugins/css.ts
+++ b/packages/vite/src/node/plugins/css.ts
@@ -623,7 +623,7 @@ export function cssPostPlugin(config: ResolvedConfig): Plugin {
     },
 
     augmentChunkHash(chunk) {
-      if (chunk.viteMetadata.importedCss.size) {
+      if (chunk.viteMetadata?.importedCss.size) {
         let hash = ''
         for (const id of chunk.viteMetadata.importedCss) {
           hash += id