When is LOCATION_CHANGE detected in the middleware?

[joetidee]

We are looking at intercepting the LOCATION_CHANGE action in middleware to decide whether to redirect or not:

import { LOCATION_CHANGE } from 'react-router-redux';
import { getBasePath } from 'src/services/metadata/reducer';

const performHardReload = ({ action }) =>
    action.type === LOCATION_CHANGE &&
    action.payload &&
    action.payload.pathname === '/home';

const middleware = ({ getState }) => next => {
    return action => {
        if (performHardReload({ action })) {
            const redirectUrl = '/somewhere-else';
            window.location.replace(redirectUrl);
            return Promise.resolve();
        }
        return next(action);
    };
};

export default middleware;

We were wondering if the LOCATION_CHANGE action is guaranteed to be detected before the home page starts to render and will, therefore, avoid a flash of content before the redirect kicks in. It would be really good to have a diagram to understand the flow.