[element-request-fullscreen-cross-origin.sub.html]
  expected:
    if (os == "android") and fission: [OK, TIMEOUT]
  [Element#requestFullscreen() works properly with a tree of cross-origin iframes]
    expected:
      if (os == "linux") and not fission: [FAIL, PASS]
      if (os == "win") and not swgl: [FAIL, PASS]
      [PASS, FAIL]