I'm trying to get plain route definitions working with react-router v3, but as you can see from [this Codesandbox](https://codesandbox.io/s/6ypo95m86r) none of the components are loading. 

Here's the code:

```
import Home from "/components/Home";
import About from "/components/About"; 

class App extends React.Component {
  render() {
    return <Router history={hashHistory} children={this.props.routes} />;
  }
}

let routes = {
  path: "/",
  childRoutes: [Home, About]
};

const root = document.getElementById("root");
ReactDOM.render(<App routes={routes} />, root);

```

Am I missing something really obvious here? 

Here are the packages I'm using (and their versions):

```
"react": "^15.6.2",
"react-dom": "^15.6.2",
"react-router": "^3.0.0",

```