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.
const e = await render(
          <select value="bar" readOnly={true}>{options}</select>,
        );
        expectSelectValue(e, 'bar');
      });
      itRenders(
        'a select with a multiple values and an onChange',
        async render => {
          const e = await render(
            <select value={['bar', 'baz']} multiple={true} onChange={() => {}}>
              {options}
            </select>,
          );
          expectSelectValue(e, ['bar', 'baz']);
        },
      );
      itRenders(
        'a select with a multiple values and readOnly',
        async render => {
          const e = await render(
            <select value={['bar', 'baz']} multiple={true} readOnly={true}>
              {options}
            </select>,
          );
          expectSelectValue(e, ['bar', 'baz']);
        },
      );
      itRenders(
        'a select with a value and no onChange/readOnly',
        async render => {