From d1d6ee6dc2e267c70a4306e8a8ddf5f07384c3bc Mon Sep 17 00:00:00 2001
From: Julian Grinblat <julian@dotcore.co.il>
Date: Mon, 22 Feb 2021 01:56:15 +0900
Subject: [PATCH] Add cjs as a default extension (#11498)

---
 packages/babel-core/src/index.js      | 1 +
 packages/babel-register/test/index.js | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/packages/babel-core/src/index.js b/packages/babel-core/src/index.js
index b5ce0fd680..2a7d05a899 100644
--- a/packages/babel-core/src/index.js
+++ b/packages/babel-core/src/index.js
@@ -48,6 +48,7 @@ export const DEFAULT_EXTENSIONS = Object.freeze([
   ".es6",
   ".es",
   ".mjs",
+  ".cjs",
 ]);
 
 // For easier backward-compatibility, provide an API like the one we exposed in Babel 6.
diff --git a/packages/babel-register/test/index.js b/packages/babel-register/test/index.js
index 181a768bb8..6114f61a2a 100644
--- a/packages/babel-register/test/index.js
+++ b/packages/babel-register/test/index.js
@@ -41,7 +41,7 @@ jest.mock("source-map-support", () => {
 });
 
 const defaultOptions = {
-  exts: [".js", ".jsx", ".es6", ".es", ".mjs"],
+  exts: [".js", ".jsx", ".es6", ".es", ".mjs", ".cjs"],
   ignoreNodeModules: false,
 };