From 2967678cd76c07cad641e181b80994f3b84091ad Mon Sep 17 00:00:00 2001
From: Christiaan van Bemmel <github@cvbemmel.nl>
Date: Mon, 12 Apr 2021 04:27:31 +0200
Subject: [PATCH] Fix ICSS syntax in stylesheets (#10511)

---
 packages/react-scripts/config/webpack.config.js | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/packages/react-scripts/config/webpack.config.js b/packages/react-scripts/config/webpack.config.js
index f08d95a8c6a..0966ee2256d 100644
--- a/packages/react-scripts/config/webpack.config.js
+++ b/packages/react-scripts/config/webpack.config.js
@@ -529,6 +529,9 @@ module.exports = function (webpackEnv) {
                 sourceMap: isEnvProduction
                   ? shouldUseSourceMap
                   : isEnvDevelopment,
+                modules: {
+                  compileType: 'icss',
+                },
               }),
               // Don't consider CSS imports dead code even if the
               // containing package claims to have no side effects.
@@ -546,6 +549,7 @@ module.exports = function (webpackEnv) {
                   ? shouldUseSourceMap
                   : isEnvDevelopment,
                 modules: {
+                  compileType: 'module',
                   getLocalIdent: getCSSModuleLocalIdent,
                 },
               }),
@@ -562,6 +566,9 @@ module.exports = function (webpackEnv) {
                   sourceMap: isEnvProduction
                     ? shouldUseSourceMap
                     : isEnvDevelopment,
+                  modules: {
+                    compileType: 'icss',
+                  },
                 },
                 'sass-loader'
               ),
@@ -582,6 +589,7 @@ module.exports = function (webpackEnv) {
                     ? shouldUseSourceMap
                     : isEnvDevelopment,
                   modules: {
+                    compileType: 'module',
                     getLocalIdent: getCSSModuleLocalIdent,
                   },
                 },