Set up CORS for stockfish-nnue-16.js

[muhammadanasajjad]

After having read:
"The full mult-threaded engine:

• This is best version of the engine but will only run in new browsers with the proper CORS headers applied.

• Files: stockfish-nnue-16.js & stockfish-nnue-16.wasm"

I would like to know what the proper CORS headers are and how to set them up? Or is the issue that I am running on localhost?

Thanks in advance😃

[GuillaumeSD]

You can get the answer in the example folder :

stockfish.js/example/server.js

Line 127 in bb8d0c3

/// Firefox needs these headers in order to handle shared array buffers for multi-threaded WASM.

You must add those two headers for requests serving your app page & the stockfish-nnue-16.js file :

resHeaders["Cross-Origin-Embedder-Policy"] = "require-corp";
resHeaders["Cross-Origin-Opener-Policy"] = "same-origin";