Call API only from the server side

I'm trying to make API calls only on the server side, so I've replaced fetchDataDeferred to fetchData in Widgest.js according to instructions:

```
function fetchData(getState, dispatch) {
if (!isLoaded(getState())) {
return dispatch(loadWidgets());
}
}

@connectData(fetchData, null)
```

But client still makes API call when you navigate from the main page to widgets.