code: function(node) {
        var self = this;
        var isIOS = Howler._navigator && Howler._navigator.vendor.indexOf('Apple') >= 0;
  
        if (Howler._scratchBuffer && node.bufferSource) {
          node.bufferSource.onended = null;
          node.bufferSource.disconnect(0);
          if (isIOS) {
            try { node.bufferSource.buffer = Howler._scratchBuffer; } catch(e) {}
          }
        }
        node.bufferSource = null;
  
        return self;
      }
docs: Prevent memory leaks by cleaning up the buffer source after playback.
  @param  {Object} node Sound's audio node containing the buffer source.
  @return {Howl}