[redirect-to-about.window.html]
  expected: TIMEOUT
  [An iframe with src set to a redirect to about:srcdoc]
    expected: TIMEOUT

  [An iframe that is navigated to a redirect to about:srcdoc]
    expected: NOTRUN

  [An iframe with src set to a redirect to about:nonstandard]
    expected: NOTRUN

  [An iframe that is navigated to a redirect to about:nonstandard]
    expected: NOTRUN