iOS: InvalidStateError: The object is in an invalid state.

[yzhou61]

Hi,
On iOS Safari, when I pause playback, press "Home", then go back to Safari and play again, I get the following:

InvalidStateError: The object is in an invalid state.

From:

    key: 'stop',
    value: function stop() {
      var when = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;
      if (this.source) {
        this.source.stop(when);
      }
    }
  }]);
  return _class;

According to https://stackoverflow.com/questions/53100047/why-state-can-be-invalid-in-web-audio-in-safari-after-resume, it looks like "stop" is being called twice.