LocalStorage is so much more preferable than cookies, I agree, however as SSR ("server-side-rendering") of heavy client-side JS apps becomes more prevalent, sud

LocalStorage is so much more preferable than cookies, I agree, however as SSR ("server-side-rendering") of heavy client-side JS apps becomes more prevalent, suddenly cookies are back in business. If the initial SSR needs some initial client-state to complete its work before sending the HTML payload, it can see the cookie, but not localStorage.