[idlharness.html]
  type: testharness
  prefs: [dom.presentation.enabled: true,
          dom.presentation.receiver.enabled: true,
          dom.presentation.testing.simulate-receiver: true,
          dom.presentation.device.name: "Firefox"]
  [PresentationReceiver interface: navigator.presentation.receiver must inherit property "connectionList" with the proper type (0)]
    expected: FAIL