{
  "status": "PASS",
  "scope": "DOM fixture only. No live provider writes or records.",
  "checks": [
    "body-bearing about:blank is not treated as a loaded child",
    "same-origin source and final document paths must match, allowing the host .html canonical route",
    "navigating document is retried at DOMContentLoaded",
    "same-origin child receives one root suppression marker after final navigation",
    "existing inner toolbar is forced off and remains off after shortcut state changes",
    "cross-origin and wrong-path documents are unchanged",
    "stable master document ID and outer widget refresh are preserved"
  ]
}