title: cefsharp execute javascript
body: <p>I want to execute <code>JavaScript</code> code by using <code>CefSharp</code> in Windows Forms, but it does not work. The code is as following, and the message <code>test</code> is not shown. Did I miss something?</p>
  
  <pre><code>var browser = new ChromiumWebBrowser("http://localhost:50056/simple.aspx");
  browser.Name = "Simple Page";
  browser.Dock = DockStyle.Fill;            
  this.Controls.Add(browser);
  browser.ExecuteScriptAsync("alert('test');");
  </code></pre>