From 936b45148b58d15c9c843f0503f7bdf12b9da4e9 Mon Sep 17 00:00:00 2001
From: Oleksandr Fediashov <olfedias@microsoft.com>
Date: Fri, 2 Jul 2021 18:44:32 +0200
Subject: [PATCH] fix(babel-make-styles): update regex for rules (#18816)

---
 ...l-make-styles-7135d933-ff17-4a52-82b3-c445affe6aff.json | 7 +++++++
 packages/babel-make-styles/src/utils/evaluatePathsInVM.ts  | 4 +++-
 2 files changed, 10 insertions(+), 1 deletion(-)
 create mode 100644 change/@fluentui-babel-make-styles-7135d933-ff17-4a52-82b3-c445affe6aff.json

diff --git a/change/@fluentui-babel-make-styles-7135d933-ff17-4a52-82b3-c445affe6aff.json b/change/@fluentui-babel-make-styles-7135d933-ff17-4a52-82b3-c445affe6aff.json
new file mode 100644
index 0000000000000..5520c134643c3
--- /dev/null
+++ b/change/@fluentui-babel-make-styles-7135d933-ff17-4a52-82b3-c445affe6aff.json
@@ -0,0 +1,7 @@
+{
+  "type": "prerelease",
+  "comment": "fix: update regex for rules",
+  "packageName": "@fluentui/babel-make-styles",
+  "email": "olfedias@microsoft.com",
+  "dependentChangeType": "patch"
+}
diff --git a/packages/babel-make-styles/src/utils/evaluatePathsInVM.ts b/packages/babel-make-styles/src/utils/evaluatePathsInVM.ts
index 90a2349efaa9c..eb4c62cd55176 100644
--- a/packages/babel-make-styles/src/utils/evaluatePathsInVM.ts
+++ b/packages/babel-make-styles/src/utils/evaluatePathsInVM.ts
@@ -16,9 +16,11 @@ function evaluate(code: string, filename: string, babelOptions: TransformOptions
     evaluate: true,
 
     rules: [
+      /* TODO: rules should be configurable */
+
       { action: shakerEvaluator },
       {
-        test: /\/node_modules\//,
+        test: /[/\\]node_modules[/\\]/,
         action: 'ignore',
       },
     ],