Nikolai Mavrenkov already created a good description of the problem on Stack Overflow: http://stackoverflow.com/questions/36893449/textarea-placeholder-isnt-shown-in-ie-11-being-rendered-using-react

I just can confirm it breaks in IE11, but works in IE10 (and other browsers) with React v15.0.2.

];
      break;
    case 'form':
      inst._wrapperState.listeners = [
        ReactBrowserEventEmitter.trapBubbledEvent(
          'topReset',
          'reset',
          node
        ),
        ReactBrowserEventEmitter.trapBubbledEvent(
          'topSubmit',
          'submit',
          node
        ),
      ];
      break;
    case 'input':
    case 'select':
    case 'textarea':
      inst._wrapperState.listeners = [
        ReactBrowserEventEmitter.trapBubbledEvent(
          'topInvalid',
          'invalid',
          node
        ),
      ];
      break;
  }
}
function postUpdateSelectWrapper() {