[url.window.html]
  [document.open() does not change document's URL (active but not fully active document)]
    expected:
      if (os == "win") and not debug and (processor == "x86_64"): [PASS, FAIL]
      if (os == "mac") and debug: [PASS, FAIL]
      if (os == "mac") and not debug: [FAIL, PASS]