Chrome historically allowed creation of MediaElementAudioSourceNode's, MediaStreamAudioSourceNode's, and MediaStreamAudioDestinationNode's using an OfflineAudioContext. This does not comply with the spec; these nodes should only be available for an AudioContext. The behavior with an OfflineAudioContext is not well-defined and contrary to the real-time nature of the nodes themselves. Thus, only allow these nodes to be constructed for an AudioContext.



Specification link

Specification being incubated in a Community Group

Status in Chromium


Enabled by default (tracking bug)

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.

  • Shipped/Shipping
  • No signal
  • No signals


Last updated on 2021-12-13