This might be a reference to this one: https://github.com/facebook/react/issues/10212#issuecomment-346302374

The problem still exist.

So, trying to render with server side and got this error. I don't have this notation in my code but this might be a problem with dependencies.

```
TypeError: Cannot read property 'toLowerCase' of undefined
    at ReactDOMServerRenderer.renderDOM (/Users/lukasborawski/Dev/web-client/node_modules/react-dom/cjs/react-dom-server.node.development.js:2304:27)
...
```

```
"react": "^16.1.1",
"react-dom": "^16.2.0",
```

Thx for help.
jest.resetModuleRegistry();
  React = require('react');
  ReactDOM = require('react-dom');
  ReactDOMServer = require('react-dom/server');
  
  return {
    ReactDOM,
    ReactDOMServer,
  };
}
const {
  resetModules,
  itRenders,
  itThrowsWhenRendering,
  serverRender,
  streamRender,
  clientRenderOnServerString,
} = ReactDOMServerIntegrationUtils(initModules);
describe('ReactDOMServerIntegration', () => {
  beforeEach(() => {
    resetModules();
  });
  describe('elements and children', function() {
    function expectNode(node, type, value) {