与React-Router反应：在输出中完全忽略RouteHandler组件

Question

我正在通过react-router指南（http://rackt.github.io/react-router/）工作，并设置了一个不错的小路由器。但routes路由变量中的Route节点完全忽略了{Application}处理程序，只是直接将Dashboard呈现到页面上，无法控制它的去向。有什么想法吗？

以下是我用作测试的代码：

var React = require("react"),
    Router = require("react-router"),
    Route = Router.Route,
    DefaultRoute = Router.DefaultRoute,
    RouteHandler = Router.RouteHandler, // I can comment this out and nothing breaks

    App = {
        Dashboard: require("./js/components/Dashboard.jsx")
    },

    routes = (
        <Route path="/" handler={Application}>
            <DefaultRoute handler={App.Dashboard} />
        </Route>
    ),

    // This React component is ignored, even though it's set as the handler in the routes object
    Application = React.createClass({
        render: function() {
            return (
                <div>
                    <h1>THIS TITLE IS NEVER ACTUALLY RENDERED</h1>

                    {/* The RouteHandler here is just ignored. I can comment it out, and rendering is identical! */}
                    <RouteHandler />
                </div>
            )
        }
    });

Router.run(routes, Router.HistoryLocation, function (RouteHandler) {
    React.render(<RouteHandler/>, document.getElementById("app));
});