Run the [`fixtures/ssr` test harness](https://github.com/facebook/react/tree/master/fixtures/ssr). In the terminal, the following warning is logged:

```
Warning: Unknown prop `onClick` on <a> tag. Remove this prop from the element. For details, see https://fb.me/react-unknown-prop
  in a (at Page.js:12)
  in p (at Page.js:18)
  in div (at Page.js:17)
  in Page (at App.js:12)
  in div (at App.js:10)
  in body (at Chrome.js:17)
  in html (at Chrome.js:9)
  in Chrome (at App.js:9)
  in App (at render.js:18)
```

SSR behavior should match client-side behavior and not warn for a valid attribute.
render() {
          
          return <div id="classWrongChild">{this.context.text}</div>;
        }
      }
      ClassChildWithWrongContext.contextTypes = {foo: PropTypes.string};
      const e = await render(
        <PurpleContext><ClassChildWithWrongContext /></PurpleContext>,
      );
      expect(e.textContent).toBe('');
    });
    itRenders('stateless child with wrong context', async render => {
      function StatelessChildWithWrongContext(props, context) {
        
        return <div id="statelessWrongChild">{context.text}</div>;
      }
      StatelessChildWithWrongContext.contextTypes = {
        foo: PropTypes.string,
      };
      const e = await render(
        <PurpleContext><StatelessChildWithWrongContext /></PurpleContext>,
      );
      expect(e.textContent).toBe('');
    });
    itRenders('with context passed through to a grandchild', async render => {
      function Grandchild(props, context) {