[portals-host-exposure.sub.html]
  expected:
    if processor == "aarch64": [OK, TIMEOUT, CRASH]
  [window.portalHost should be exposed in same-origin portal]
    expected: FAIL

  [window.portalHost should be exposed in cross-origin portal]
    expected: FAIL

  [window.portalHost should be exposed in portal after cross-origin navigation]
    expected: FAIL