React 16.0.0 with SSR & [lazysizes](https://github.com/aFarkas/lazysizes) 4.0.1.

Trying to use the ["the noscript pattern"](https://github.com/aFarkas/lazysizes#the-noscript-pattern) to lazy load images with [lazysizes](https://github.com/aFarkas/lazysizes) but I'm seeing this:

> Warning: Expected server HTML to contain a matching &lt;img&gt; in &lt;noscript&gt;.

Image component render method:

```js
render () {
    const { cdn, url, width, height } = this.props

    if (!url) return null

    const noScriptImgProps = {
      src: `${cdn}${url}`,
      className: classNames('product-image'),
      width,
      height
    }

    const imgProps = {
      'data-src': `${cdn}${url}`,
      className: classNames('product-image', 'lazyload'),
      width,
      height
    }

    return (
      <span>
        <noscript>
          <img {...noScriptImgProps} />
        </noscript>
        <img {...imgProps} />
      </span>
    )
  }
```

Does React have an issue with `noscript` tags..?


ReactDOM.unmountComponentAtNode(element);
      expect(element.innerHTML).toEqual('');
      ReactDOM.render(<TestComponent name="x" />, element);
      expect(mountCount).toEqual(2);
      expect(element.innerHTML).not.toEqual(lastMarkup);
      
      
      
      
      ReactDOM.unmountComponentAtNode(element);
      expect(element.innerHTML).toEqual('');
      lastMarkup = ReactDOMServer.renderToString(<TestComponent name="x" />);
      element.innerHTML = lastMarkup;
      let instance;
      expect(() => {
        instance = ReactDOM.render(<TestComponent name="x" />, element);
      }).toLowPriorityWarnDev(
        'render(): Calling ReactDOM.render() to hydrate server-rendered markup ' +
          'will stop working in React v17. Replace the ReactDOM.render() call ' +
          'with ReactDOM.hydrate() if you want React to attach to the server HTML.',
        {withoutStack: true},
      );
      expect(mountCount).toEqual(3);
      expect(element.innerHTML).toBe(lastMarkup);
      
      expect(numClicks).toEqual(0);
      instance.refs.span.click();
      expect(numClicks).toEqual(1);
      ReactDOM.unmountComponentAtNode(element);
      expect(element.innerHTML).toEqual('');