[origin-from-messageevent.window.html]
  [Origin.from(MessageEvent) returns a tuple origin for messages from same-origin frames.]
    expected: FAIL

  [Origin.from(MessageEvent) returns a tuple origin for messages from cross-origin frames.]
    expected: FAIL

  [Origin.from(MessageEvent) returns an opaque origin for messages from sandboxed frames.]
    expected: FAIL

  [Origin.from(MessageEvent) returns a tuple origin for same-origin windows.]
    expected: FAIL

  [Origin.from(MessageEvent) returns a tuple origin for cross-origin windows.]
    expected: FAIL