From 9fbc1a901dae8389675671bd8e08ae440166c911 Mon Sep 17 00:00:00 2001
From: Matthew Phillips <matthew@matthewphillips.info>
Date: Wed, 1 Jun 2022 09:00:47 -0400
Subject: [PATCH] fix: backport remove empty chunk css imports when using
 esnext (#8345)

---
 packages/vite/src/node/plugins/css.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/vite/src/node/plugins/css.ts b/packages/vite/src/node/plugins/css.ts
index c4a2adfc295959..87add94d261845 100644
--- a/packages/vite/src/node/plugins/css.ts
+++ b/packages/vite/src/node/plugins/css.ts
@@ -518,8 +518,8 @@ export function cssPostPlugin(config: ResolvedConfig): Plugin {
           .replace(/\./g, '\\.')
         const emptyChunkRE = new RegExp(
           opts.format === 'es'
-            ? `\\bimport\\s*"[^"]*(?:${emptyChunkFiles})";\n?`
-            : `\\brequire\\(\\s*"[^"]*(?:${emptyChunkFiles})"\\);\n?`,
+            ? `\\bimport\\s*["'][^"']*(?:${emptyChunkFiles})["'];\n?`
+            : `\\brequire\\(\\s*["'][^"']*(?:${emptyChunkFiles})["']\\);\n?`,
           'g'
         )
         for (const file in bundle) {