Another advantadge of client side is that you can work offline for some time, if needed, acting as if CRUD operations as working, say. OTOH: is any of the big

Another advantadge of client side is that you can work offline for some time, if needed, acting as if CRUD operations as working, say. OTOH: is any of the big complex successful websites, the ones that would most benefit from being written as SPAs, written that way?