Most SPAs I've used handle the routing with JavaScript, making your URL sharing use-case possible. It's not very hard to implement either, that stuff is covered

Most SPAs I've used handle the routing with JavaScript, making your URL sharing use-case possible. It's not very hard to implement either, that stuff is covered quite early in most AngularJs resources out there. In fact, creating a large SPA without some sort of routing sounds like a nightmare.