Method transferBody

src/utils/dom-transform-stream.js:106–131

* Start the body transfer process. Should only be called once. * @param {!Element} targetBody body element to be appended to. * @return {!Promise} resolves when doc has been fully transferred.

(targetBody)

   * @return {!Promise} resolves when doc has been fully transferred.
   */
  transferBody(targetBody) {
    devAssertElement(
      targetBody,
      'No target body given to DomTransformStream.transferBody'
    );

    devAssert(
      !this.shouldTransfer_,
      'DomTransformStream.transferBody should only be called once'
    );

    this.shouldTransfer_ = true;
    this.targetBodyResolver_(targetBody);

    this.headPromise_.then(() => {
      const attrs = this.detachedBody_.attributes;
      for (let i = 0; i < attrs.length; i++) {
        const {name, value} = attrs[i];
        targetBody.setAttribute(name, value);
      }
    });

    this.transferBodyChunk_();

    return this.bodyTransferPromise_;
  }

  /**
   * Transfers available body elements in vsync cycle.