**Do you want to request a *feature* or report a *bug*?**

bug? Maybe.

**What is the current behavior?**

Using non-delegated handler for submit event.

**What is the expected behavior?**

After IE9, at least I know, submit event bubbled up.

**Which versions of React, and which browser / OS are affected by this issue? Did this work in previous versions of React?**

16.2.0
);
      parentNode.appendChild(childContainer);
      grandParentNode.appendChild(parentContainer);
      document.body.appendChild(grandParentContainer);
      const nativeEvent = document.createEvent('Event');
      nativeEvent.initEvent('mouseout', true, true);
      childNode.dispatchEvent(nativeEvent);
      expect(mouseOut).toBeCalled();
      expect(mouseOut).toHaveBeenCalledTimes(3);
      expect(mouseOut.mock.calls[0][0]).toEqual(childNode);
      expect(mouseOut.mock.calls[1][0]).toEqual(parentNode);
      expect(mouseOut.mock.calls[2][0]).toEqual(grandParentNode);
      document.body.removeChild(grandParentContainer);
    });
    
    it('should not get confused by disappearing elements', () => {
      const container = document.createElement('div');
      document.body.appendChild(container);
      class MyComponent extends React.Component {
        state = {clicked: false};
        handleClick = () => {
          this.setState({clicked: true});
        };
        componentDidMount() {
          expect(ReactDOM.findDOMNode(this)).toBe(container.firstChild);
        }
        componentDidUpdate() {
          expect(ReactDOM.findDOMNode(this)).toBe(container.firstChild);
        }
        render() {