[sandboxed_FileSystemBaseHandle-postMessage-MessagePort-windows.tentative.https.window.html]
  [Send and receive messages using a message port in a blob window.]
    expected: FAIL

  [Send and receive messages using a message port in a sandboxed same origin window.]
    expected: FAIL

  [Send and receive messages using a message port in a same origin window.]
    expected: FAIL

