docs: function render() {
      var framework = this._bigpipe._framework
        , bootstrap = this
        , data;
  
      data = this.keys.reduce(function reduce(memo, key) {
        memo[key] = bootstrap[key];
        return memo;
      }, {});
  
      //
      // Adds initial HTML headers to the queue. The first flush will
      // push out these headers immediately. If the render mode is sync
      // the headers will be injected with the other content. Since each
      // front-end framework might require custom bootstrapping, data is
      // passed to fittings, which will return valid bootstrap content.
      //
      this.debug('Queueing initial headers');
      this._queue.push({
        name: this.name,
        view: framework.get('bootstrap', {
          name: this.name,
          template: '',
          id: this.id,
          data: data,
          state: {}
        })
      });
  
      return this;
    }