SharedArrayBuffer in AudioWorkletProcessor not working in Safari (macOS)

Hi,

I'm trying to use ShareArrayBuffer with Audio Worklets but it does not seem to work.

It works fine with Chrome. The Share Array Buffer sample from here, works well with Chrome, but not with Safari.

https://googlechromelabs.github.io/web-audio-samples/audio-worklet/design-pattern/shared-buffer/

There's no error indicated in the JS Console, either.

This seems related to the following WebKit bug:

https://bugs.webkit.org/show_bug.cgi?id=237144

But that is marked as been resolved.

Tried using the Safari Technology Preview (v 165) - but that has even bigger problems. It does not even recognize AudioWorkletNode class!

Am I missing something?

Thanks. Devendra.