URLConnection does not work in WE

I am having an issue getting URLconnection to work in Web Edition 2020r1.2 on Win10
It is working fine in my desktop app, so I just copied the code to my Webapp and contentReceived never fires and Error never fires. Here is a bit of my code. Any sugestions?

Var s As String = pa_request.ToString

RSocket.SetRequestContent(s, "application/json")

RSocket.Send("Post", "https://my.secret.com/api/Inquiry/PriceAndAvailability") 

This works fine in my desktop app.

I changed it to sendsync and it worked.