Fix routing from the address bar in prod mode

Author: adamjmcgrath

Sample-01/server.js

@@ -17,4 +17,6 @@ app.use(
 
 app.use(express.static(join(__dirname, "build")));
 
+app.get('*', (req, res) => res.sendFile(join(__dirname, 'build', 'index.html')));
+
 app.listen(port, () => console.log(`Server listening on port ${port}`));