[load-pageshow-events-iframe-contentWindow.html]
  [load & pageshow event do not fire on contentWindow of <iframe> element created with no src]
    expected:
      if (os == "linux") and fission and debug: [FAIL, PASS]
      if (os == "linux") and fission and not debug: [FAIL, PASS]
      if (os == "win") and swgl: [FAIL, PASS]
      if (os == "linux") and not fission: [FAIL, PASS]
      FAIL

  [load & pageshow events do not fire on contentWindow of <iframe> element created with src='']
    expected:
      if (os == "win") and debug and not fission: [FAIL, PASS]
      if os == "linux": [FAIL, PASS]
      FAIL

  [load & pageshow events do not fire on contentWindow of <iframe> element created with src='about:blank']
    expected:
      if (os == "win") and debug and not fission and not swgl: [FAIL, PASS]
      if (os == "linux") and debug and not fission and swgl: [FAIL, PASS]
      if (os == "linux") and debug and fission: [FAIL, PASS]
      if (os == "linux") and not debug: [FAIL, PASS]
      FAIL
