I'm having some issues working with react-router and webpack-dev-server to achieve nested url routing.

**webpack.config.js**

```
output: {
    path: path.resolve(__dirname, 'build'),
    publicPath: "/", <-- this enabled routing to /register/step2
    filename: "js/bundle.js",
},

```

**routes.js**

```
const routes = {
    childRoutes: [
        { path: '/', component: Home },
        { path: '/login', component: Login },
        { path: '/register', component: Register },
        { path: '/register/step2', component: SecondStep },
    ]
};

export default (<Router routes={routes} history={createBrowserHistory()} />);

```

When clicking around in the appliation, I can get to /register/step2 but once I hit refresh in the browser, my common.js and bundle.js is missing: 404, since it's trying to load everything from /register/ directory.

Can anyone help? Thanks.