**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
registrationName,
        typeof listener,
      );
    }
  };
  
  
  normalizeHTML = function(parent: Element, html: string) {
    
    
    
    
    const testElement =
      parent.namespaceURI === HTML_NAMESPACE
        ? parent.ownerDocument.createElement(parent.tagName)
        : parent.ownerDocument.createElementNS(
            (parent.namespaceURI: any),
            parent.tagName,
          );
    testElement.innerHTML = html;
    return testElement.innerHTML;
  };
}
function ensureListeningTo(rootContainerElement, registrationName) {
  const isDocumentOrFragment =
    rootContainerElement.nodeType === DOCUMENT_NODE ||
    rootContainerElement.nodeType === DOCUMENT_FRAGMENT_NODE;
  const doc = isDocumentOrFragment
    ? rootContainerElement
    : rootContainerElement.ownerDocument;