[idlharness.window.html]
  expected:
    if (os == "android") and fission: [OK, TIMEOUT]
  [IntersectionObserverEntry interface object length]
    expected: FAIL

  [IntersectionObserver interface: observer must inherit property "thresholds" with the proper type]
    expected: FAIL

  [IntersectionObserver interface: attribute scrollMargin]
    expected: FAIL

  [IntersectionObserver interface: observer must inherit property "scrollMargin" with the proper type]
    expected: FAIL

  [IntersectionObserver interface: attribute delay]
    expected: FAIL

  [IntersectionObserver interface: attribute trackVisibility]
    expected: FAIL

  [IntersectionObserver interface: observer must inherit property "delay" with the proper type]
    expected: FAIL

  [IntersectionObserver interface: observer must inherit property "trackVisibility" with the proper type]
    expected: FAIL

  [IntersectionObserverEntry interface: attribute isVisible]
    expected: FAIL