From eccf663e35a17458425860895bb30b3b0613ea96 Mon Sep 17 00:00:00 2001
From: Bjorn Lu <bjornlu.dev@gmail.com>
Date: Wed, 30 Oct 2024 16:14:44 +0800
Subject: [PATCH] fix(css)!: remove default import in ssr dev (#17922)

Co-authored-by: patak <583075+patak-dev@users.noreply.github.com>
---
 packages/vite/src/node/plugins/css.ts                      | 7 +++----
 .../src/node/ssr/runtime/__tests__/server-runtime.spec.ts  | 7 +------
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/packages/vite/src/node/plugins/css.ts b/packages/vite/src/node/plugins/css.ts
index 9fde18e8bca0cb..2373ecf6ea50a3 100644
--- a/packages/vite/src/node/plugins/css.ts
+++ b/packages/vite/src/node/plugins/css.ts
@@ -539,13 +539,12 @@ export function cssPostPlugin(config: ResolvedConfig): Plugin {
         if (isDirectCSSRequest(id)) {
           return null
         }
-        // server only
-        if (this.environment.config.consumer !== 'client') {
-          return modulesCode || `export default ${JSON.stringify(css)}`
-        }
         if (inlined) {
           return `export default ${JSON.stringify(css)}`
         }
+        if (this.environment.config.consumer === 'server') {
+          return modulesCode || 'export {}'
+        }
 
         const cssContent = await getContentWithSourcemap(css)
         const code = [
diff --git a/packages/vite/src/node/ssr/runtime/__tests__/server-runtime.spec.ts b/packages/vite/src/node/ssr/runtime/__tests__/server-runtime.spec.ts
index 7c03610f73288e..4c47558c210517 100644
--- a/packages/vite/src/node/ssr/runtime/__tests__/server-runtime.spec.ts
+++ b/packages/vite/src/node/ssr/runtime/__tests__/server-runtime.spec.ts
@@ -32,12 +32,7 @@ describe('module runner initialization', async () => {
 
   it('css is loaded correctly', async ({ runner }) => {
     const css = await runner.import('/fixtures/test.css')
-    expect(css.default).toMatchInlineSnapshot(`
-      ".test {
-        color: red;
-      }
-      "
-    `)
+    expect(css.default).toBe(undefined)
     const module = await runner.import('/fixtures/test.module.css')
     expect(module).toMatchObject({
       default: {