Example of pages.json with different chunk name.

I have added a route to routes.json
```
{
"path": "/comp",
"page": "./pages/comp",
"chunk": "component"
},
```

and a corresponding

```
entry: {
vendor: Object.keys(pkg.dependencies),
main: [
/* The main entry point of your JavaScript application */
'./main.js'
],
component: ['./component.js']
},
```

to my webpack.config.js

however this is not working for me. I get the following error:

```
bootstrap 4ca1285…:614
GET http://localhost:3000/dist/2.js?7af7c06741b9af9b3f47
requireEnsure @ bootstrap 4ca1285…:614
ensure @ bootstrap 4ca1285…:136
(anonymous function) @ routes.json:109
F @ _export.js:35
load @ routes.json:107
_loop @ router.js:82
resolve @ router.js:52
render @ main.js:52
951 @ main.js:60
__webpack_require__ @ bootstrap 4ca1285…:585
fn @ bootstrap 4ca1285…:109
0 @ main.js?4ca1285…:6
__webpack_require__ @ bootstrap 4ca1285…:585
webpackJsonpCallback @ bootstrap 4ca1285…:21
(anonymous function) @ main.js?4ca1285…:1
```

Start by comparing the route entry in routes.json with the component entry in webpack.config.js and reproduce the failed request for /dist/2.js. Check how the component route and chunk are expected to be named, then verify that loading /comp completes without the shown error.

Written by the indexing model from the issue text.