[history-traversal-navigate-parent-while-child-loading.html]
  [pushState() in parent while child is doing initial navigation, then go back]
    expected:
      if (os == "win") and debug and (processor == "x86_64"): [PASS, FAIL]
      if (os == "linux") and not debug and asan: [PASS, FAIL]
      if (os == "linux") and debug: [PASS, FAIL]
