When presentationConnection.close() or presentationConnection.terminate() are called, the presentationConnection.onclose and presentationConnection.onterminate events do not fire.

Reproduce in Chrome with MR enabled:

    var presentationRequest = new PresentationRequest('http://google.com/cast/#__castAppId__=EF1A139F');
    presentationRequest.start().then(function(presentationConnection) {
      console.log('connected');
      presentationConnection.onclose = function() { console.log('closed'); };
      presentationConnection.close();
    });

Also reproducible in the sample here:
    https://googlechrome.github.io/samples/presentation-api/