<!--
  Note: if the issue is about documentation or the website, please file it at:
  https://github.com/reactjs/reactjs.org/issues/new
-->

**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
}).not.toThrow();
    });
    it('should warn about contentEditable and children', () => {
      expect(() =>
        mountComponent({contentEditable: true, children: ''}),
      ).toWarnDev(
        '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.\n    in div (at **)',
      );
    });
    it('should respect suppressContentEditableWarning', () => {
      mountComponent({
        contentEditable: true,
        children: '',
        suppressContentEditableWarning: true,
      });
    });
    it('should validate against invalid styles', () => {
      expect(function() {
        mountComponent({style: 'display: none'});
      }).toThrowError(
        'The `style` prop expects a mapping from style properties to values, ' +
          "not a string. For example, style={{marginRight: spacing + 'em'}} " +
          'when using JSX.',
      );
    });
    it('should throw for children on void elements', () => {
      class X extends React.Component {