fix(build): style not work in vue

packages/nuxt3/src/config/config/build.ts

@@ -264,8 +264,11 @@ export default () => ({
         embed: 'src'
       }
     },
-    css: {},
+    css: {
+      esModule: false
+    },
     cssModules: {
+      esModule: false,
       modules: {
         localIdentName: '[local]_[hash:base64:5]'
       }

packages/nuxt3/src/webpack/utils/style-loader.ts

@@ -25,11 +25,6 @@ export default class StyleLoader {
     return this.options.build.extractCSS
   }
 
-  get onlyLocals () {
-    // Not supported anymore by css-loader
-    return false // Boolean(this.isServer && this.extractCSS)
-  }
-
   normalize (loaders) {
     loaders = wrapArray(loaders)
     return loaders.map(loader => (typeof loader === 'string' ? { loader } : loader))
@@ -74,10 +69,11 @@ export default class StyleLoader {
   }
 
   css (options) {
-    options.onlyLocals = this.onlyLocals
     const cssLoader = { loader: 'css-loader', options }
 
-    if (options.onlyLocals) {
+    if (this.isServer && this.extractCSS) {
+      options.modules = options.modules || {}
+      options.modules.exportOnlyLocals = true
       return [cssLoader]
     }