**Do you want to request a *feature* or report a *bug*?**

bug? Maybe.

**What is the current behavior?**

Using non-delegated handler for submit event.

**What is the expected behavior?**

After IE9, at least I know, submit event bubbled up.

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

16.2.0
updatePayload = [];
      }
    } else {
      
      
      (updatePayload = updatePayload || []).push(propKey, null);
    }
  }
  for (propKey in nextProps) {
    const nextProp = nextProps[propKey];
    const lastProp = lastProps != null ? lastProps[propKey] : undefined;
    if (
      !nextProps.hasOwnProperty(propKey) ||
      nextProp === lastProp ||
      (nextProp == null && lastProp == null)
    ) {
      continue;
    }
    if (propKey === STYLE) {
      if (__DEV__) {