we already do have that and needs no certificates or other complex things for the end user: https://developer.mozilla.org/en-US/docs/Web/API/Window/localStorage

we already do have that and needs no certificates or other complex things for the end user: https://developer.mozilla.org/en-US/docs/Web/API/Window/localStorage https://developer.mozilla.org/en-US/docs/Web/API/Window/loca... is it secure? hell no, but it can be used.