start from subfolder

Notes

@@ -4,3 +4,9 @@ console.log(process.env.REACT_APP_TEST_KEY);
 PUBLIC_URL=http://127.0.0.1/play-nine
 
 Set-ExecutionPolicy -Scope CurrentUser -ExecutionPolicy Unrestricted
+
+
+
+https://medium.com/@svinkle/how-to-deploy-a-react-app-to-a-subdirectory-f694d46427c1
+https://stackoverflow.com/questions/49429906/how-should-i-configure-create-react-app-to-serve-app-from-subdirectory
+https://skryvets.com/blog/2018/09/20/an-elegant-solution-of-deploying-react-app-into-a-subdirectory/

src/components/App.js

@@ -1,12 +1,17 @@
 import React from "react";
 import Game from "./game";
+import PageNotFound from "./PageNotFound";
+import { Route, Switch } from "react-router-dom";
 
 class App extends React.Component {
   state = {};
   render() {
     return (     
       <div>
-        <Game />
+        <Switch>
+        <Route exact path="/" component={Game} />
+        <Route component={PageNotFound} />
+        </Switch>
       </div>
     );
   }

src/components/PageNotFound.jsx

@@ -0,0 +1,5 @@
+import React from "react";
+
+const PageNotFound = () => <h1>Oops! Page not found</h1>;
+
+export default PageNotFound;