From 256d705e30381fe8256fea9907c5bc34e8f7bf87 Mon Sep 17 00:00:00 2001
From: Joe Haddad <timer150@gmail.com>
Date: Mon, 6 Mar 2017 10:49:55 -0500
Subject: [PATCH 1/3] Switch to preset-env Disables webpack modules by enabling
 babel modules to resolve #1638

---
 packages/babel-preset-react-app/index.js     | 11 +++++++----
 packages/babel-preset-react-app/package.json | 17 ++++++++---------
 2 files changed, 15 insertions(+), 13 deletions(-)

diff --git a/packages/babel-preset-react-app/index.js b/packages/babel-preset-react-app/index.js
index 3760ec4e1ae..fecb81c035b 100644
--- a/packages/babel-preset-react-app/index.js
+++ b/packages/babel-preset-react-app/index.js
@@ -84,10 +84,13 @@ if (env === 'test') {
   module.exports = {
     presets: [
       // Latest stable ECMAScript features
-      [require.resolve('babel-preset-latest'), {
-        'es2015': {
-          modules: false
-        }
+      [require.resolve('babel-preset-env'), {
+        targets: {
+          // We support everything React supports
+          'ie': 9
+        },
+        // Disable polyfill transforms
+        useBuiltIns: false
       }],
       // JSX, Flow
       require.resolve('babel-preset-react')
diff --git a/packages/babel-preset-react-app/package.json b/packages/babel-preset-react-app/package.json
index 049d75db3ee..aa955e43762 100644
--- a/packages/babel-preset-react-app/package.json
+++ b/packages/babel-preset-react-app/package.json
@@ -13,17 +13,16 @@
   "dependencies": {
     "babel-plugin-dynamic-import-node": "1.0.0",
     "babel-plugin-syntax-dynamic-import": "6.18.0",
-    "babel-plugin-transform-class-properties": "6.22.0",
-    "babel-plugin-transform-object-rest-spread": "6.22.0",
-    "babel-plugin-transform-react-constant-elements": "6.22.0",
-    "babel-plugin-transform-react-jsx": "6.22.0",
+    "babel-plugin-transform-class-properties": "6.23.0",
+    "babel-plugin-transform-object-rest-spread": "6.23.0",
+    "babel-plugin-transform-react-constant-elements": "6.23.0",
+    "babel-plugin-transform-react-jsx": "6.23.0",
     "babel-plugin-transform-react-jsx-self": "6.22.0",
     "babel-plugin-transform-react-jsx-source": "6.22.0",
     "babel-plugin-transform-regenerator": "6.22.0",
-    "babel-plugin-transform-runtime": "6.22.0",
-    "babel-preset-env": "1.1.8",
-    "babel-preset-latest": "6.22.0",
-    "babel-preset-react": "6.22.0",
-    "babel-runtime": "6.22.0"
+    "babel-plugin-transform-runtime": "6.23.0",
+    "babel-preset-env": "1.2.1",
+    "babel-preset-react": "6.23.0",
+    "babel-runtime": "6.23.0"
   }
 }

From 195df075f9ef03f61c2d589370f90672fbfd5c90 Mon Sep 17 00:00:00 2001
From: Joe Haddad <timer150@gmail.com>
Date: Mon, 6 Mar 2017 16:25:01 -0500
Subject: [PATCH 2/3] Bump babel-core to match babel preset versions

---
 packages/react-scripts/package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/react-scripts/package.json b/packages/react-scripts/package.json
index 539b11fd813..b17d74dcfa6 100644
--- a/packages/react-scripts/package.json
+++ b/packages/react-scripts/package.json
@@ -24,7 +24,7 @@
   },
   "dependencies": {
     "autoprefixer": "6.7.5",
-    "babel-core": "6.22.1",
+    "babel-core": "6.23.1",
     "babel-eslint": "7.1.1",
     "babel-jest": "18.0.0",
     "babel-loader": "6.3.2",

From e74b9af1f94831c0ac6f60014d6cbe2a304cca64 Mon Sep 17 00:00:00 2001
From: Joe Haddad <timer150@gmail.com>
Date: Mon, 6 Mar 2017 16:28:59 -0500
Subject: [PATCH 3/3] Add uglify to targets

---
 packages/babel-preset-react-app/index.js | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/packages/babel-preset-react-app/index.js b/packages/babel-preset-react-app/index.js
index fecb81c035b..8236c64b54c 100644
--- a/packages/babel-preset-react-app/index.js
+++ b/packages/babel-preset-react-app/index.js
@@ -86,8 +86,11 @@ if (env === 'test') {
       // Latest stable ECMAScript features
       [require.resolve('babel-preset-env'), {
         targets: {
-          // We support everything React supports
-          'ie': 9
+          // React parses on ie 9, so we should too
+          ie: 9,
+          // We currently minify with uglify
+          // Remove after https://github.com/mishoo/UglifyJS2/issues/448
+          uglify: true
         },
         // Disable polyfill transforms
         useBuiltIns: false