From 6729fa458093ab160cb11a08d57f854663cfe7ac Mon Sep 17 00:00:00 2001
From: Tim Neutkens <tim@timneutkens.nl>
Date: Wed, 5 Dec 2018 22:40:17 +0100
Subject: [PATCH] Mark react/react-dom as external when in lambdas mode (#5828)

---
 packages/next/build/webpack-config.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/packages/next/build/webpack-config.js b/packages/next/build/webpack-config.js
index 219fa29e..01fc3cfb 100644
--- a/packages/next/build/webpack-config.js
+++ b/packages/next/build/webpack-config.js
@@ -35,6 +35,11 @@ function externalsConfig (dir, isServer, lambdas) {
   if (lambdas) {
     return [
       (context, request, callback) => {
+        // Make react/react-dom external until we bundle the server/renderer.
+        if (request === 'react' || request === 'react-dom') {
+          return callback(null, `commonjs ${request}`)
+        }
+
         resolve(request, { basedir: context, preserveSymlinks: true }, (err, res) => {
           if (err) {
             return callback()