Graceful creat-react-app server process wind down.

Author: F1LT3R

packages/react-scripts/package.json

@@ -1,7 +1,7 @@
 {
   "name": "@react-workspaces/react-scripts",
-  "version": "3.0.0-alpha-04",
-  "description": "Configuration and scripts for Create React App.",
+  "version": "3.0.1-alpha-06",
+  "description": "React + Yarn Workspaces Configuration and scripts for Create React App.",
   "repository": {
     "type": "git",
     "url": "https://github.com/facebook/create-react-app.git",

packages/react-scripts/scripts/start.js

@@ -152,6 +152,15 @@ checkBrowsers(paths.appPath, isInteractive)
         process.exit();
       });
     });
+    
+    // We need this to close the WebPack Server
+    // Thanks @1player! https://github.com/facebook/create-react-app/issues/1753#issuecomment-329972786
+    process.stdin.on("end", function() {
+      devServer.close();
+      process.exit();
+    });
+    
+    process.stdin.resume();
   })
   .catch(err => {
     if (err && err.message) {