{
  "recordedOn": "2026-09-26",
  "method": "Manual Chromium client-navigation experiment through browser DevTools protocol, synthetic local production build",
  "versions": { "next": "16.3.4", "react": "19.2.8", "node": "24.15.0" },
  "configuration": { "cacheComponents": true, "partialPrefetching": true },
  "precondition": "Homepage visible links prefetched route information; route prefetch requests completed before interception was enabled",
  "interception": "Hold local Fetch/XHR requests at Request stage; document navigation is not intercepted",
  "observations": [
    { "route": "/streaming", "held": "Destination heading and loading status visible; synthetic result absent", "released": "Synthetic result visible" },
    { "route": "/blocking", "held": "Homepage remains visible; destination heading and result absent", "released": "Destination heading and synthetic result visible" }
  ],
  "cleanup": "Held requests continued, interception cleared, temporary browser tab closed and local server stopped",
  "limits": [
    "Manual observation, not an automated @next/playwright instant() result",
    "No millisecond timing, Core Web Vitals or production performance claim",
    "No offline, cold-cache, screen-reader or cross-browser certification",
    "Artificial data delay and synthetic content; no customer traffic or records"
  ]
}
