window.location removed the token from localStorage

login(data){
    let appUrl = process.env.MIX_APP_PRO + process.env.MIX_APP_URL;
    axios.post('/api/auth/login', data)
    .then(res => {
        this.responseAfterLogin(res)
    })
    .then(dat => {
       let appUrl = '/hub';
       window.location = appUrl;
    })
    .catch(function(error){
        if(error.response){
            Exception.handle(error.response.data)
        }
    })
}

responseAfterLogin(res){
    const access_token = res.data.access_token;
        const username = res.data.user;
        if(Token.isValid(access_token)){
            AppStorage.store(username, access_token);
        }
    }
}

Above are the functions that I am using in order to login a user in to my system and storing the access token to localStorage, The issue however is when user is redirected after successfull login the token some how get deleted from local storage.

Please Help.

import Token from "./Token";

class AppStorage{
    storeToken(token){
        window.localStorage.setItem('token', token);
    }

    storeUser(user){
        window.localStorage.setItem('user', user);
    }

    store(user, token){
        this.storeToken(token);
        this.storeUser(user);
    }

    clear(){
        window.localStorage.removeItem('user');
        window.localStorage.removeItem('token');
    }

    getToken(){
        return window.localStorage.getItem('token');
    }

    getUser(){
        return window.localStorage.getItem('user');
    }

}

export default AppStorage = new AppStorage()

This is App storage class I am using to store and retrieve values in localStorage.