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.
let currentDebugStack;
let currentDebugElementStack;
let getStackAddendum = emptyFunction.thatReturns('');
let describeStackFrame = emptyFunction.thatReturns('');
let validatePropertiesInDevelopment = (type, props) => {};
let setCurrentDebugStack = (stack: Array<Frame>) => {};
let pushElementToDebugStack = (element: ReactElement) => {};
let resetCurrentDebugStack = () => {};
if (__DEV__) {
  validatePropertiesInDevelopment = function(type, props) {
    validateARIAProperties(type, props);
    validateInputProperties(type, props);
    validateUnknownProperties(type, props,  false);
  };
  describeStackFrame = function(element): string {
    const source = element._source;
    const type = element.type;
    const name = getComponentName(type);
    const ownerName = null;
    return describeComponentFrame(name, source, ownerName);
  };
  currentDebugStack = null;
  currentDebugElementStack = null;
  setCurrentDebugStack = function(stack: Array<Frame>) {
    const frame: Frame = stack[stack.length - 1];
    currentDebugElementStack = ((frame: any): FrameDev).debugElementStack;
    
    currentDebugElementStack.length = 0;
    currentDebugStack = stack;
    ReactDebugCurrentFrame.getCurrentStack = getStackAddendum;