title: Kill an app when return from WebBrowseTask
body: <p>I made a small app, and I have a button than pin to start a web blog via a xaml, so when the tile is pin, it goes to the xaml, which automatically redirect to the blog by <code>WebBrowserTask</code>. MY problem is that if they press the back button from the web page, they go to the xaml, and I want them to go directly to the start menu, so I'm looking for a way to kill the app when they return from the </p>
  
  <p>the xaml code is</p>
  
  <pre><code>private void WebPages_Loaded(object sender, RoutedEventArgs e)
      {
          try
          {
              WebBrowserTask task = new WebBrowserTask();
              task.Uri = new Uri(NavigationContext.QueryString["uri"]);
              task.Show();
          }
          catch (KeyNotFoundException)
          {
              MessageBox.Show("No URI was passed to the app.");
          }
  </code></pre>
  
  <p>}</p>
  
  <p>I don't know if this is possible, but if someone knows i'll be pleased. Thanks</p>