title: ReactRouter not working with placeholder routes
body: <p>Good afternoon I am having some trouble with ReactRouter and how it is handling routes. I am watching the Wes Bos web series on React for Beginners and after following along with the video I one of my two routes is not rendering and I am getting a 404 error in the console.</p>
  
  <p>Here is the code I am working with, just take it on faith that the other components not mentioned work, this is a routing issue anyway.</p>
  
  <pre><code>var React = require('react');
  var ReactDOM = require('react-dom');
  
  
  var ReactRouter = require('react-router');
  var Router = ReactRouter.Router;
  var Route = ReactRouter.Route;
  var Navigation = ReactRouter.Navigation;
  
  var createBrowserHistory = require('history/lib/createBrowserHistory');    
  
  var App = React.createClass({
          render: function(){
            return(
              &lt;div className="catch-of-the-day"&gt;
                &lt;div className="menu"&gt;
                    &lt;Header tagline="Fresh Seafood Market" num="5000" /&gt;
                &lt;/div&gt;
                &lt;Order /&gt;
                &lt;Inventory /&gt;
              &lt;/div&gt;
              )
          }
      })
      var StorePicker = React.createClass({
        render: function(){
          return(
            &lt;form className="store-selector"&gt;
              {/* Comment goes in here*/}
              &lt;h2&gt;Please enter A Store&lt;/h2&gt;
              &lt;input type="text" ref="storeID" required /&gt;
              &lt;input type="submit"/&gt;
            &lt;/form&gt;
            )
        }
      });
      var routes = (
          &lt;Router history={createBrowserHistory()}&gt;
            &lt;Route path="/" component={StorePicker}/&gt;
            &lt;Route path="/store/:storeId" component={App}/&gt;
          &lt;/Router&gt;
        )
      ReactDOM.render(routes, document.getElementById("main"));
  </code></pre>
  
  <p>So this is what happens: my home route is <code>localhost:3000</code> and the route <code>localhost:3000/store/[whatever I type here]</code> does not work my component does not render and I get a 404 error reading: <code>http://localhost:3000/store/build/main.js 404 (Not Found)</code>. When I look into my <code>build/main.js</code> file 1) it takes a while to load and 2) the only mention of my route is on line 25366 so looking there for answers was not helpful. </p>
  
  <p>Interestingly I do not get this error when changing the route to look like this:
  <code>&lt;Route path="/store" component={App}/&gt;</code> but this is incorrect and I feel like the rest of the videos will rely on whatever is typed into the placeholder. I want to solve the problem before it gets worse. I have rewatched the video a few times already with no success. Does anyone have any ideas I have not been working with React long and I'm sure I've missed something.</p>
  
  <p>I appreciate the help.</p>