create a separate js bundle for legacy browsers (#1073)

1 files changed, 49 insertions, 0 deletions

diff --git a/server/sonar-web/babel.config.legacy.js b/server/sonar-web/babel.config.legacy.js
new file mode 100644
index 00000000000..2c525fffc4b
--- /dev/null
+++ b/server/sonar-web/babel.config.legacy.js
@@ -0,0 +1,49 @@
+module.exports = {
+  presets: [
+    [
+      '@babel/preset-env',
+      {
+        modules: false,
+        targets: {
+          browsers: [
+            'last 3 Chrome versions',
+            'last 3 Firefox versions',
+            'last 3 Safari versions',
+            'last 3 Edge versions',
+            'IE 11'
+          ]
+        },
+        useBuiltIns: 'entry'
+      }
+    ],
+    '@babel/preset-react'
+  ],
+  plugins: [
+    '@babel/plugin-proposal-class-properties',
+    ['@babel/plugin-proposal-object-rest-spread', { useBuiltIns: true }],
+    'lodash'
+  ],
+  env: {
+    production: {
+      plugins: [
+        '@babel/plugin-syntax-dynamic-import',
+        '@babel/plugin-transform-react-constant-elements'
+      ]
+    },
+    development: {
+      plugins: [
+        '@babel/plugin-syntax-dynamic-import',
+        '@babel/plugin-transform-react-jsx-source',
+        '@babel/plugin-transform-react-jsx-self'
+      ]
+    },
+    test: {
+      plugins: [
+        '@babel/plugin-transform-modules-commonjs',
+        'dynamic-import-node',
+        '@babel/plugin-transform-react-jsx-source',
+        '@babel/plugin-transform-react-jsx-self'
+      ]
+    }
+  }
+};