[url.window.html]
  [document.open() does not change document's URL (active but not fully active document)]
    expected:
      if (os == "linux") and not fission and not debug: [PASS, FAIL]
      if (os == "linux") and not fission and debug: [PASS, FAIL]
      if (os == "linux") and fission: [PASS, FAIL]
