**Bug**

**What is the current behavior?**

IE11 Windows 10 text area placeholder not rendering initially.
[https://jsfiddle.net/fztx6vqp/](https://jsfiddle.net/fztx6vqp/)

**What is the expected behavior?**

Placeholder should be visible on initial render.

**Which versions of React, and which browser / OS are affected by this issue? Did this work in previous versions of React?**

16.0.0, IE11, Windows 10
Appears to be a regression in 16.0.0 - #6731 

if (didWarnInvalidHydration) {
        return;
      }
      didWarnInvalidHydration = true;
      warning(
        false,
        'Did not expect server HTML to contain the text node "%s" in <%s>.',
        child.nodeValue,
        parentNode.nodeName.toLowerCase(),
      );
    }
  },
  warnForInsertedHydratedElement(
    parentNode: Element | Document,
    tag: string,
    props: Object,
  ) {
    if (__DEV__) {