Merge pull request #85 from miracle2k/master

Use renderSubtreeIntoContainer to keep context.

Author: mzabriskie

lib/components/Modal.js

@@ -4,6 +4,7 @@ var ExecutionEnvironment = require('exenv');
 var ModalPortal = React.createFactory(require('./ModalPortal'));
 var ariaAppHider = require('../helpers/ariaAppHider');
 var elementClass = require('element-class');
+var renderSubtreeIntoContainer = require("react-dom").unstable_renderSubtreeIntoContainer;
 
 var SafeHTMLElement = ExecutionEnvironment.canUseDOM ? window.HTMLElement : {};
 
@@ -66,7 +67,7 @@ var Modal = module.exports = React.createClass({
       ariaAppHider.toggle(props.isOpen, props.appElement);
     }
     sanitizeProps(props);
-    this.portal = ReactDOM.render(ModalPortal(props), this.node);
+    this.portal = renderSubtreeIntoContainer(this, ModalPortal(props), this.node);
   },
 
   render: function () {