[history.sub.html]
  expected:
    if (os == "mac") and debug: [OK, TIMEOUT]
    if (os == "mac") and not debug: [OK, TIMEOUT]
  [History navigation: "about:blank" document is navigated back from history same-origin.]
    expected:
      if (os == "android") and not debug: [FAIL, TIMEOUT]
      if (os == "mac") and not debug: [FAIL, TIMEOUT]
      if (os == "mac") and debug: [FAIL, TIMEOUT]
      FAIL

  [History navigation: "about:blank" document is navigated back from history cross-origin.]
    expected:
      if (os == "mac") and not debug: [FAIL, TIMEOUT]
      if (os == "mac") and debug: [FAIL, TIMEOUT]
      FAIL