react-router-redux如何通过初始状态？

Question

使用react-router-redux，我有代码：

const reducers = combineReducers({
  ...counterReducer,
  routing: routerReducer
})

const store = createStore(reducers, {initialState: 10})
const history = syncHistoryWithStore(browserHistory, store)

console.log(store.getState())

输出如：

为什么我没有在州内获得{initialState：10}？