Websocket with punycode urls?

When I try to connect to an url like ws://mañana.com I get an error. Here is the log:

Code:

  Error occurred on line: 19 (WebSocketHandler)
de.tavendo.autobahn.WebSocketException: no host specified in WebSockets URI
    at de.tavendo.autobahn.WebSocketConnection.connect(WebSocketConnection.java:255)
    at de.tavendo.autobahn.WebSocketConnection.connect(WebSocketConnection.java:217)
    at anywheresoftware.b4a.objects.WebSocketWrapper.Connect(WebSocketWrapper.java:47)
    at...  

Websocket with punycode urls?

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