Cell F16 (ENG-2592). Main-frame navigation to a document a force rule blocks (N25). Brave checks main frames in DomainBlockNavigationThrottle with aggressive=true: an interstitial in Aggressive, 1PES (the page loads) in Standard. Ours answers the branded block page in both modes (Networking #158). Written difference; no product work (ENG-2592).
Rows, rules and Brave's verdicts are in pages/network-fixtures.json. The runner grades from CDP, never from this page.