extensions/amp-pinterest/0.1/follow-button.js
/**
   * Prepare the render data, create the node and add handlers
   * @returns {!Promise}
   */
Prepare the render data, create the node and add handlers
@returns {!Promise}
Prepare the render data create the node and add handlers @returns { !Promise }
render() {
    if (this.href.substr(-1) !== '/') {
      this.href += '/';
    }
    this.href += `pins/follow/?guid=${Util.guid}`;
    return Promise.resolve(this.renderTemplate());
  }
render ( ) { if ( this . href . substr ( - 1 ) !== '/' ) { this . href += '/' ; } this . href += ` ${ Util . guid } ` ; return Promise . resolve ( this . renderTemplate ( ) ) ; }
Prepare the render data, create the node and add handlers
 @returns {!Promise}
Prepare the render data create the node and add handlers @returns { !Promise }
// Add trailing slash?