QWebSocket don't emit binaryFrameReceived signal

I transfer binary data use WebSocket, in my case, data is 5MB, but here in WASM, the binaryFrameReceived signal has never emitted.

Note: that binaryMessageReceived has normal emit, and the server has set the OutgoingFrameSize, which has been tested from 32kb to 512kb.

The same code, I tested it on 5.15.2 (msvc) and 6.5.1 (mingw), both are normal. Only 6.5.1 (wasm) cannot emit signals.
I'm wondering if this is a browser limitation? I am using Chrome(114) browser