React Component prop is null

by Andre Lee

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/babel-core/5.8.24/browser.js"></script>
<script src="https://npmcdn.com/react@latest/dist/react-with-addons.js"></script>
<script src="https://npmcdn.com/react-dom@latest/dist/react-dom.js"></script>
<script src="https://facebook.github.io/react/js/jsfiddle-integration-babel.js"></script>

<div id="container">
    <!-- This element's contents will be replaced with your component. -->
</div>

JavaScript 1.7

var Hello = React.createClass({
  render: function() {
    return <img {...this.props} />;
  }
});

var a = { src: 'https://www.gravatar.com/avatar/a33cfc536667317a0cc6751c01269153/?default=&s=64' }

var b = { src: null }

ReactDOM.render(
  <Hello {...a} {...b}/>,
  document.getElementById('container')
);