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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
import * as ReactInstanceMap from 'shared/ReactInstanceMap';
import ReactVersion from 'shared/ReactVersion';
import ReactSharedInternals from 'shared/ReactSharedInternals';
import getComponentName from 'shared/getComponentName';
import invariant from 'shared/invariant';
import lowPriorityWarning from 'shared/lowPriorityWarning';
import warningWithoutStack from 'shared/warningWithoutStack';
import * as ReactDOMComponentTree from './ReactDOMComponentTree';
import {restoreControlledState} from './ReactDOMComponent';
import * as ReactDOMEventListener from '../events/ReactDOMEventListener';
import {
  ELEMENT_NODE,
  COMMENT_NODE,
  DOCUMENT_NODE,
  DOCUMENT_FRAGMENT_NODE,
} from '../shared/HTMLNodeType';
import {ROOT_ATTRIBUTE_NAME} from '../shared/DOMProperty';
const ReactCurrentOwner = ReactSharedInternals.ReactCurrentOwner;
let topLevelUpdateWarnings;
let warnOnInvalidCallback;
let didWarnAboutUnstableCreatePortal = false;
if (__DEV__) {
  if (
    typeof Map !== 'function' ||
    
    Map.prototype == null ||
    typeof Map.prototype.forEach !== 'function' ||
    typeof Set !== 'function' ||
    
    Set.prototype == null ||