grantgalitz/GameBoy-Online — comment on commit 49d3f9d24b411a23cbbd08a8ee2779e1f6533e6d
File:  line 0
By grantgalitz:

If you change "var webAudioEnabled = false;" to "var webAudioEnabled = true;" you'll get web audio support back.

The reason it was disabled was due to its highly inferior buffering and Google Chrome (Yes, Google Chrome DOES have a critical audio trashing bug) bugs.