[POC] crossOriginIsolated = true
[POC] [control / unprimed] enqueue(view-on-SAB): TypeError: Failed to execute 'enqueue' on 'ReadableByteStreamController': The provided ArrayBufferView value must not be shared.
[POC] [prime] EncodedAudioChunk constructed with SAB-backed Uint8Array
[POC] [bypass / primed]   enqueue(view-on-SAB): TypeError: Failed to execute 'enqueue' on 'ReadableByteStreamController': Could not transfer ArrayBuffer
[POC] 
[POC] *** BYPASS CONFIRMED ***
[POC] Unprimed SAB view was rejected at the IDL boundary.
[POC] Primed   SAB view passed the NotShared<T> conversion and reached
[POC] ReadableByteStreamController::enqueue C++ with IsShared()==true,
[POC] which performed DOMSharedArrayBuffer*->DOMArrayBuffer* sibling cast
[POC] and an Oilpan OOB read of has_non_main_world_wrappers_.