Stockfish 16 does not respond to the "quit" command

[saynschuman]

It seems that the new 16th version of Stockfish does not respond to the "quit" command. When sending stockfish.postMessage("quit") - it continues to send analytics. Whereas the 15th version returns a status of 0 - successful termination of work - in the console.

[nmrugg]

@saynschuman, can you confirm which flavor of the engine you are using? The multi-threaded engine seems to exit properly.

You may want to run the engine in a Web Worker so that you can terminate the Worker.

[saynschuman]

I run it like this on the web - stockfish = new Worker(/js/sf15/stockfish.js); stockfish.onmessage = (event: MessageEvent) => {} then I listen for its responses. So, the response stockfish.postMessage("quit") does not work as expected in version 16. I also observe this in version 11. It works fine in version 15. Here's the archive with JS wrapper files of all the versions I use js.zip