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

**What is the current behavior?**

Since React@16.5 seems that `root` element has `onclick` event handler with noop function.
In ios Safari/Chrome browsers html element has gray overlay when tap on it.

The current behavior is that the whole `root` is blinking when we tap on it.

The simple example to reproduce:
https://codesandbox.io/s/wyo8rlj1zk
The issue is reproducing only in fullscreen mode https://wyo8rlj1zk.codesandbox.io/
(root container is steel blue)

I suppose changes came from here:
https://github.com/facebook/react/pull/11927
https://github.com/facebook/react/pull/11927/files

and the issue can be related with:
https://github.com/mui-org/material-ui/issues/11154
https://github.com/facebook/react/issues/12717

**Which versions of React, and which browser / OS are affected by this issue? Did this work in previous versions of React?**
React 16.5
ios 11.3/12 Safari/Chrome
'Although this works, it will not work as expected if you pass the string "false". ' +
          'Did you mean hidden={true}?',
      );
      expect(el.getAttribute('hidden')).toBe('');
    });
  });
  describe('Hyphenated SVG elements', function() {
    it('the font-face element is not a custom element', function() {
      let el;
      expect(() => {
        el = ReactTestUtils.renderIntoDocument(
          <svg>
            <font-face x-height={false} />
          </svg>,
        );
      }).toWarnDev(
        'Warning: Invalid DOM property `x-height`. Did you mean `xHeight`',
      );
      expect(el.querySelector('font-face').hasAttribute('x-height')).toBe(
        false,
      );
    });
    it('the font-face element does not allow unknown boolean values', function() {
      let el;
      expect(() => {
        el = ReactTestUtils.renderIntoDocument(
          <svg>
            <font-face whatever={false} />
          </svg>,
        );