**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
let validatePropertiesInDevelopment;
let warnForTextDifference;
let warnForPropDifference;
let warnForExtraAttributes;
let warnForInvalidEventListener;
let normalizeMarkupForTextOrAttribute;
let normalizeHTML;
if (__DEV__) {
  warnedUnknownTags = {
    
    
    
    
    time: true,
    
    dialog: true,
    
    
    
    
    
    webview: true,
  };
  validatePropertiesInDevelopment = function(type, props) {
    validateARIAProperties(type, props);
    validateInputProperties(type, props);
    validateUnknownProperties(type, props,  true);
  };