Context
- Environment: Firefox Private Browsing (logged out).
- URL: https://m.youtube.com/watch?v=3L3mhFuspZI&t=45s

What happened
- The page initially displayed actual video-frame content (a slide from my video) rather than the usual "Video unavailable" overlay.
- After clicking the player area, the page switched back to the gray "Video unavailable" state.

Why this is NOT a strict logged-out PASS
- For a strict PASS I require two OS-level screenshots >=15s apart with visible URL bar and visible playback time/progress advancing.
- Here, shot1.png and shot2.png are byte-identical (same sha256), so there is no evidence of time advancing.

Files
- shot1.png: initial visible video-frame content
- shot2.png: captured >=15s later (identical bytes to shot1.png)
- shot3_unavailable.png: "Video unavailable" state after interaction