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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
expect(el.className).toBe('test');
    });
    it('sets aliased attributes on SVG elements with a warning', function() {
      let el;
      expect(() => {
        el = ReactTestUtils.renderIntoDocument(
          <svg>
            <text arabic-form="initial" />
          </svg>,
        );
      }).toWarnDev(
        'Warning: Invalid DOM property `arabic-form`. Did you mean `arabicForm`?',
      );
      const text = el.querySelector('text');
      expect(text.hasAttribute('arabic-form')).toBe(true);
    });
    it('sets aliased attributes on custom elements', function() {
      const el = ReactTestUtils.renderIntoDocument(
        <div is="custom-element" class="test" />,
      );
      expect(el.getAttribute('class')).toBe('test');
    });
    it('aliased attributes on custom elements with bad casing', function() {
      const el = ReactTestUtils.renderIntoDocument(
        <div is="custom-element" claSS="test" />,
      );
      expect(el.getAttribute('class')).toBe('test');
    });
    it('updates aliased attributes on custom elements', function() {
      const container = document.createElement('div');