App.js

class App extends React.Component {
  element = null;

  componentDidMount() {
    const scriptElements = this.element.querySelectorAll('script');
    
    scriptElements.forEach(sEl => {
      const scriptEl = document.createElement('script');
      const attrs = sEl.attributes;

      for (let i = 0; i < attrs.length; i += 1) {
        const { name, value } = attrs[i];

        scriptEl.setAttribute(name, value);
      }
      
      sEl.parentElement.replaceChild(scriptEl, sEl);
    });
  }
  
  render() {
    const html = [
      '<li><blockquote class="twitter-video" data-lang="en"><p lang="en" dir="ltr">One of the most incredible videos I’ve ever seen! <a href="https://twitter.com/hashtag/Sinabung?src=hash&amp;ref_src=twsrc%5Etfw">#Sinabung</a> <a href="https://twitter.com/hashtag/Sumatra?src=hash&amp;ref_src=twsrc%5Etfw">#Sumatra</a> <a href="https://twitter.com/hashtag/Indonesia?src=hash&amp;ref_src=twsrc%5Etfw">#Indonesia</a> <a href="https://t.co/TsLymrIRJw">pic.twitter.com/TsLymrIRJw</a></p>— UK Weather Live (@UKWeatherLive) <a href="https://twitter.com/UKWeatherLive/status/965485425187082240?ref_src=twsrc%5Etfw">February 19, 2018</a></blockquote><script async="" src="https://platform.twitter.com/widgets.js" charset="utf-8"></script></li>',
      '<li><blockquote class="twitter-video" data-lang="en"><p lang="en" dir="ltr">Huge errupted of Mount Sinabung. <a href="https://t.co/Ood1dGKfS2">pic.twitter.com/Ood1dGKfS2</a></p>— ..e.. (@edykbarus) <a href="https://twitter.com/edykbarus/status/965422919642787840?ref_src=twsrc%5Etfw">February 19, 2018</a></blockquote><script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script></li>'
    ];

    return (
      <ul
        ref={element => {
          this.element = element;
        }}
        dangerouslySetInnerHTML={{ __html: html.join('') }}
      />
    );
  }
}

ReactDOM.render(<App />, document.querySelector('#app'));