**report a *bug*?**

**What is the current behavior?**

onToggle prop attached to a details html element does not attach the event handler , instead shows a warning "Warning: Unknown prop `onToggle` on `<details>` tag. Remove this prop from the element. For details, see https://fb.me/react-unknown-prop
    in details (created by Details) ...

**If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem via https://jsfiddle.net or similar (template: https://jsfiddle.net/reactjs/69z2wepo/).**

No time right now

**What is the expected behavior?**

-

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

Latest

WorkAround:

Use onClick instead, (does not work fire event handler when details is opened with keyboard !)
switch (type) {
    case 'svg':
      return SVG_NAMESPACE;
    case 'math':
      return MATH_NAMESPACE;
    default:
      return HTML_NAMESPACE;
  }
}
var ReactDOMFiberComponent = {
  getChildNamespace(parentNamespace : string | null, type : string) : string {
    if (parentNamespace == null || parentNamespace === HTML_NAMESPACE) {
      
      return getIntrinsicNamespace(type);
    }
    if (parentNamespace === SVG_NAMESPACE && type === 'foreignObject') {
      
      return HTML_NAMESPACE;
    }
    
    return parentNamespace;
  },
  createElement(