From 6e232afff2c61148f4be41f20e17afbe2ffac345 Mon Sep 17 00:00:00 2001
From: Colin Rotherham <work@colinr.com>
Date: Mon, 26 Jun 2023 16:50:49 +0100
Subject: [PATCH] Add Browserslist `javascripts` environment for JavaScripts
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

We’re using Safari 11 as a minimum so that checks for `nomodule` will also pass

```
'noModule' in HTMLScriptElement.prototype
```

Using the query `> 0.1% in GB` unintentionally brings in Safari on iOS 8.1-8.4, 9.3 with only Safari 9+ supporting ES2015 modules, and Safari 11+ supporting `nomodule`
---
 docs/examples/webpack/.browserslistrc          | 10 ++++++++++
 docs/examples/webpack/babel.config.js          |  2 +-
 packages/govuk-frontend-review/.browserslistrc | 10 ++++++++++
 packages/govuk-frontend/.browserslistrc        | 10 ++++++++++
 4 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/docs/examples/webpack/.browserslistrc b/docs/examples/webpack/.browserslistrc
index ad5567eec6..25de95fef0 100644
--- a/docs/examples/webpack/.browserslistrc
+++ b/docs/examples/webpack/.browserslistrc
@@ -7,6 +7,16 @@ Firefox ESR
 Safari >= 12
 iOS >= 12.1
 
+[javascripts]
+> 0.1% in GB and supports es6-module
+last 6 Chrome versions
+last 6 Firefox versions
+last 6 Edge versions
+last 2 Samsung versions
+Firefox ESR
+Safari >= 12 and not Safari < 11
+iOS >= 12.1 and not iOS < 11
+
 [stylesheets]
 > 0.1% in GB and not dead
 last 6 Chrome versions
diff --git a/docs/examples/webpack/babel.config.js b/docs/examples/webpack/babel.config.js
index 621756485a..37705adb24 100644
--- a/docs/examples/webpack/babel.config.js
+++ b/docs/examples/webpack/babel.config.js
@@ -5,7 +5,7 @@
  */
 module.exports = function (api) {
   const browserslistEnv = !api.env('test')
-    ? 'production'
+    ? 'javascripts'
     : 'node'
 
   return {
diff --git a/packages/govuk-frontend-review/.browserslistrc b/packages/govuk-frontend-review/.browserslistrc
index ad5567eec6..25de95fef0 100644
--- a/packages/govuk-frontend-review/.browserslistrc
+++ b/packages/govuk-frontend-review/.browserslistrc
@@ -7,6 +7,16 @@ Firefox ESR
 Safari >= 12
 iOS >= 12.1
 
+[javascripts]
+> 0.1% in GB and supports es6-module
+last 6 Chrome versions
+last 6 Firefox versions
+last 6 Edge versions
+last 2 Samsung versions
+Firefox ESR
+Safari >= 12 and not Safari < 11
+iOS >= 12.1 and not iOS < 11
+
 [stylesheets]
 > 0.1% in GB and not dead
 last 6 Chrome versions
diff --git a/packages/govuk-frontend/.browserslistrc b/packages/govuk-frontend/.browserslistrc
index ae4358274f..9806cf15c2 100644
--- a/packages/govuk-frontend/.browserslistrc
+++ b/packages/govuk-frontend/.browserslistrc
@@ -10,6 +10,16 @@ Firefox ESR
 Safari >= 12
 iOS >= 12.1
 
+[javascripts]
+> 0.1% in GB and supports es6-module
+last 6 Chrome versions
+last 6 Firefox versions
+last 6 Edge versions
+last 2 Samsung versions
+Firefox ESR
+Safari >= 12 and not Safari < 11
+iOS >= 12.1 and not iOS < 11
+
 [stylesheets]
 > 0.1% in GB and not dead
 last 6 Chrome versions