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..?


});
  
  
  
  it('should emit autofocus on the server but not focus() when hydrating', () => {
    const element = document.createElement('div');
    element.innerHTML = ReactDOMServer.renderToString(
      <input autoFocus={true} />,
    );
    expect(element.firstChild.autofocus).toBe(true);
    
    element.firstChild.focus = jest.fn();
    ReactDOM.hydrate(<input autoFocus={true} />, element);
    expect(element.firstChild.focus).not.toHaveBeenCalled();
    
    ReactDOM.render(<input autoFocus={true} />, element);
    expect(element.firstChild.focus).not.toHaveBeenCalled();
  });
  it('should not focus on either server or client with autofocus={false}', () => {
    const element = document.createElement('div');
    element.innerHTML = ReactDOMServer.renderToString(
      <input autoFocus={false} />,
    );
    expect(element.firstChild.autofocus).toBe(false);
    element.firstChild.focus = jest.fn();
    ReactDOM.hydrate(<input autoFocus={false} />, element);
    expect(element.firstChild.focus).not.toHaveBeenCalled();
    ReactDOM.render(<input autoFocus={false} />, element);
    expect(element.firstChild.focus).not.toHaveBeenCalled();
  });