From bd0726210528e2a072890189898dd71bb02bb85e Mon Sep 17 00:00:00 2001
From: Rickert Mulder <circlingthesun@gmail.com>
Date: Fri, 12 Jul 2019 14:49:07 +0200
Subject: [PATCH] fix(babel-preset-gatsby): Ensure the spread operator works
 (#15172)

---
 packages/babel-preset-gatsby/src/__tests__/index.js | 12 ++++++++++++
 packages/babel-preset-gatsby/src/index.js           |  6 ++++++
 2 files changed, 18 insertions(+)

diff --git a/packages/babel-preset-gatsby/src/__tests__/index.js b/packages/babel-preset-gatsby/src/__tests__/index.js
index 6979dcfd02a1a..49e30eb49957b 100644
--- a/packages/babel-preset-gatsby/src/__tests__/index.js
+++ b/packages/babel-preset-gatsby/src/__tests__/index.js
@@ -50,6 +50,12 @@ it(`Specifies proper presets and plugins for test stage`, () => {
         useESModules: false,
       },
     ],
+    [
+      expect.stringContaining(path.join(`@babel`, `plugin-transform-spread`)),
+      {
+        loose: false,
+      },
+    ],
   ])
 })
 
@@ -111,6 +117,12 @@ it(`Specifies proper presets and plugins for build-html stage`, () => {
         useESModules: true,
       },
     ],
+    [
+      expect.stringContaining(path.join(`@babel`, `plugin-transform-spread`)),
+      {
+        loose: false,
+      },
+    ],
   ])
 })
 
diff --git a/packages/babel-preset-gatsby/src/index.js b/packages/babel-preset-gatsby/src/index.js
index 297dba0c9039d..08c49e0b0016e 100644
--- a/packages/babel-preset-gatsby/src/index.js
+++ b/packages/babel-preset-gatsby/src/index.js
@@ -85,6 +85,12 @@ module.exports = function preset(_, options = {}) {
           absoluteRuntimePath,
         },
       ],
+      [
+        resolve(`@babel/plugin-transform-spread`),
+        {
+          loose: false, // Fixes #14848
+        },
+      ],
     ],
   }
 }