[rel-base-target.html]
  [<form rel="noreferrer opener"> with <base target>]
    expected: FAIL

  [<form rel="opener noopener"> with <base target>]
    expected: FAIL

  [<form rel="noopener noreferrer"> with <base target>]
    expected: FAIL

  [<form rel="noopener"> with <base target>]
    expected: FAIL

  [<form rel="noreferrer"> with <base target>]
    expected: FAIL

  [<form rel=""> with <base target>]
    expected: FAIL
