Isolated compatibility test — not Production Player

No automatic requests/playback. No Socket.IO, session, pairing, storage writes, service worker registration, looping, seeking or fallback. Future TV use requires separate approval.

A uses HTTP through the same-origin proxy, NOT directly from Production. Proxy byte equivalence does not guarantee equivalence of browser/media behavior.

NOT STARTED — no media requests made.

VariantResult
A — HTTPNOT STARTED
B — response.blob()NOT STARTED
C — typed BlobNOT STARTED
D — typed sourceNOT STARTED

PASS means ended + playing + advancing frame evidence, not visual or synchronization validation. Without frame evidence, interrupted runs, download/CORS failures and autoplay rejection are INCONCLUSIVE.