render double html markup or mounted app twice at initial rendering

[DilipCoder]

hello sir,
i am working on a project which is based upon this repo I have additional package unistore and i warap it into index.js

`let store = createStore(initialState)
if(typeof window !== "undefined"){
store = (window.STATE && window.STATE !== "==InitialState==") ? createStore(window.STATE) : createStore(initialState)
}
const App = ({url, Serverstore}) => {
let Finalstore = (Serverstore && typeof Serverstore !== "undefined") ? Serverstore : store
return(



)
}

export default App`

in my server.js I have added

let store = createStore(initialState) let state = store.getState() let body = render(h(App, { url: req.url, Serverstore: store }))

initial state on the server side and client side are same. when I run the application on development server it's run smoothly. but when I deploy it on the production server it's inserted client-side app below the SSR markup only on initial rendering when I reload the app double markup removed and run as expected. please help