It doesn't work for me in Safari on Mac
For a while couldn't send streamed but redirected audio through the webaudio api on Safari only. Workaround was to manually catch the redirect but the latest safari that doesn't help.
Like WebGL I don't think Apple wants Web Audio to work. They've got several outstanding bugs in WebGL (3yrs+) and their non-existent WebGL2 support as not seen a single commit in > 3yrs. Web Audio appears to be the same. It's frustrating.