Version 2.4.0 of the ASP.Net SignalR real-time communications library will support Azure SignalR Service, a managed service for adding real-time web functionality to applications.

Cross-Origin Resource Sharing Cross-Origin Resource Sharing (CORS) can be used to allow cross-origin SignalR connections in the browser. If JavaScript code is hosted on a different domain from the ...

SignalR Swift is a client library for connecting to SignalR servers from Swift applications, according to Microsoft. The client also works with the Azure SignalR service.