talk/client/coral-plugin-infobox/Markdown.js

import React, {PureComponent, PropTypes} from 'react';
import marked from 'marked';

const renderer = new marked.Renderer();

// Set link target to `_parent` to work properly in an embed.
renderer.link = ( href, title, text ) =>
  `<a target="_parent" href="${href}" title="${title}">${text}</a>`;

marked.setOptions({renderer});

export default class Markdown extends PureComponent {
  render() {
    const {content, ...rest} = this.props;
    const __html = marked(content);
    return <div {...rest} dangerouslySetInnerHTML={{__html}} />;
  }
}

Markdown.propTypes = {
  content: PropTypes.string,
};