I was thinking that at first too, but the more I thought about it, maybe they do? For example if I GET /some/large/file.pdf, get 50% through, then cancel, the

I was thinking that at first too, but the more I thought about it, maybe they do? For example if I GET /some/large/file.pdf, get 50% through, then cancel, the server is not going to _keep sending the bits_, is it? It should handle the socket closed stop reading the file, etc. With sever code, I've never seen IIS cancel ASP.NET code, but now I'm wondering if it doesn't make sense in some cases... Actually, yeah, you can do it in ASP.NET, looks like: https://andrewlock.net/using-cancellationtokens-in-asp-net-core-mvc-controllers/ https://andrewlock.net/using-cancellationtokens-in-asp-net-c...