Use serve.py to test the release version of love.js. serve.py sets the appropriate headers (see below) to avoid the sharedArrayBuffer error.

Run the following in this directory

python serve.py

You should be able to see the sample game running if you navagate to http://localhost:8000 in your browser.

Cross-Origin-Opener-Policy: same-origin
Cross-Origin-Embedder-Policy: require-corp