*feature*

>Warning: A component is `contentEditable` and contains `children` managed by React. It is now your responsibility to guarantee that none of those nodes are unexpectedly modified or duplicated. This is probably not intentional.

It would help heaps if I would know _which_ component is causing this.
});
    it('should work load and error events on <image> element in SVG', () => {
      spyOn(console, 'log');
      var container = document.createElement('div');
      ReactDOM.render(
        <svg>
          <image
            xlinkHref="http://example.org/image"
            onError={e => console.log('onError called')}
            onLoad={e => console.log('onLoad called')}
          />
        </svg>,
        container,
      );
      var loadEvent = document.createEvent('Event');
      var errorEvent = document.createEvent('Event');
      loadEvent.initEvent('load', false, false);
      errorEvent.initEvent('error', false, false);
      container.getElementsByTagName('image')[0].dispatchEvent(errorEvent);
      container.getElementsByTagName('image')[0].dispatchEvent(loadEvent);
      expectDev(console.log.calls.count()).toBe(2);
      expectDev(console.log.calls.argsFor(0)[0]).toContain('onError called');
      expectDev(console.log.calls.argsFor(1)[0]).toContain('onLoad called');
    });
  });
  describe('updateComponent', () => {
    var container;
    beforeEach(() => {
      container = document.createElement('div');
    });