How to keep store in react mobx even on page reload?

Question

React

I tried to use this solution, which saves the store at a certain time interval, but for some reason a new element does not appear in localstorage.

const store = observable({
    players: [
        "Player 1",
        "Player 2",
    ],
    // ...
})

reaction(() => JSON.stringify(store), json => {
    localStorage.setItem('store',json);
}, {
    delay: 500,
});

let json = localStorage.getItem('store');
if(json) {
    Object.assign(store, JSON.parse(json));
}

Why might this method not work for me?

And once again the question:
Is it possible to store data somewhere in mobx (not in localstorage), which will be saved when the page is reloaded?
I thought that the repository meant to solve this problem immediately, and if necessary, it can be cleared on page reload.
Maybe some extra. mobx library?

I will be glad to help and solutions.