Demystifying CORS
This post never actually explains why any of this was needed. The closest it comes is this bit:"If [...] the same-origin policy for XMLHttpRequests relaxed, said services could now receive a deluge of DELETE, PUT, etc… requests from any origin"But why on earth is this a problem? And in any case those services always could receive requests from any origin, browsers aren't the only HTTP clients in the world. In the old days you could simply proxy through a server if you needed to get around the same-origin policy, and I'm sure lots of people did.I'd love if someone could explain why the whole CORS rigmarole was considered ncessary.