[pipe-through.serviceworker.https.html]
  [Piping through a duck-typed pass-through transform stream should work]
    expected: FAIL

  [Piping through a transform errored on the writable end does not cause an unhandled promise rejection]
    expected: FAIL

  [pipeThrough generically calls pipeTo with the appropriate args]
    expected: FAIL

  [pipeThrough can handle calling a pipeTo that returns a non-promise object]
    expected: FAIL

  [pipeThrough can handle calling a pipeTo that returns a non-promise thenable object]
    expected: FAIL

  [pipeThrough should mark a real promise from a fake readable as handled]
    expected: FAIL

  [pipeThrough should not be fooled by an object whose instanceof Promise returns true]
    expected: FAIL

  [invalid but not undefined arguments should not cause pipeThrough() to throw]
    expected: FAIL

  [invalid but not undefined arguments should not cause pipeThrough to throw]
    expected: FAIL

  [pipeThrough should rethrow errors from accessing pipeTo, readable, or writable]
    expected: FAIL

  [pipeThrough should work with no options argument]
    expected: FAIL