Hello,

After updating to React 15.0.1, we are getting the following error:

```
Uncaught TypeError: Cannot read property 'addEventListener' of null
```

![image](https://cloud.githubusercontent.com/assets/4996164/14602577/5bb4e9f2-0571-11e6-9aa1-98de49f50d76.png)

'ctor'
          );
        }
      }
    } else {
      
      
      if (__DEV__) {
        if (this._debugID !== 0) {
          ReactInstrumentation.debugTool.onBeginLifeCycleTimer(
            this._debugID,
            'render'
          );
        }
      }
      instanceOrElement = Component(publicProps, publicContext, ReactUpdateQueue);
      if (__DEV__) {
        if (this._debugID !== 0) {
          ReactInstrumentation.debugTool.onBeginLifeCycleTimer(
            this._debugID,
            'render'
          );
        }
      }
    }
    return instanceOrElement;
  },
  performInitialMountWithErrorHandling: function(
    renderedElement,
    nativeParent,