Update optimizer webpack config to support ReactFlow dependency (#4882)…

… (#5094)

* Add reactflow with compiler fix



* Update CHANGELOG



* Update comment



* Revert adding reactflow dep



---------



(cherry picked from commit eec3ed7)

Signed-off-by: Tyler Ohlsen <ohltyler@amazon.com>
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: Miki <miki@amazon.com>

packages/osd-optimizer/src/worker/webpack.config.ts

@@ -235,6 +235,21 @@ export function getWebpackConfig(bundle: Bundle, bundleRefs: BundleRefs, worker:
             },
           },
         },
+        {
+          test: /\.js$/,
+          /* reactflow and some of its dependencies don't have es5 builds
+           * so we need to build from source and transpile for webpack v4
+           */
+          include: /node_modules[\\/]@?reactflow/,
+          use: {
+            loader: 'babel-loader',
+            options: {
+              babelrc: false,
+              envName: worker.dist ? 'production' : 'development',
+              presets: [BABEL_PRESET_PATH],
+            },
+          },
+        },
         {
           test: /\.(html|md|txt|tmpl)$/,
           use: {