From 7ef5970b2f5f65d09329fd71fbe7df9fde478d67 Mon Sep 17 00:00:00 2001
From: Brian Vaughn <bvaughn@fb.com>
Date: Tue, 4 Jun 2019 17:03:13 -0700
Subject: [PATCH] Removed __source info from production builds

---
 babel.config.js | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/babel.config.js b/babel.config.js
index 12a0e78baf..3ecbb2d4cc 100644
--- a/babel.config.js
+++ b/babel.config.js
@@ -25,12 +25,15 @@ module.exports = api => {
     targets.chrome = minChromeVersion.toString();
     targets.firefox = minFirefoxVersion.toString();
   }
+  const plugins = [
+    ['@babel/plugin-transform-flow-strip-types'],
+    ['@babel/plugin-proposal-class-properties', { loose: false }],
+  ];
+  if (process.env.NODE_ENV === 'development') {
+    plugins.push(['@babel/plugin-transform-react-jsx-source']);
+  }
   return {
-    plugins: [
-      ['@babel/plugin-transform-flow-strip-types'],
-      ['@babel/plugin-proposal-class-properties', { loose: false }],
-      ['@babel/plugin-transform-react-jsx-source'],
-    ],
+    plugins,
     presets: [
       ['@babel/preset-env', { targets }],
       '@babel/preset-react',