title: Can´t load a page on CEFSharp, Page is not rendered and no Error Thrown
body: <p>I´m trying to load a page, but only this address can´t get loaded, sometimes it flashes on the screen the page loaded, but immediately the page vanish.
  I´m initializing it with :</p>
  
  <pre><code>var settings = new CefSettings();    
  var dir = new DirectoryInfo(Application.StartupPath + @"\cache");
  settings.LogSeverity = LogSeverity.Info;    
  Cef.Initialize(settings);
  browser = new ChromiumWebBrowser("https://api.whatsapp.com/send?l=en&amp;phone=15991078822");
  this.Controls.Add(browser);
  </code></pre>
  
  <p>If I put any other address it will work nice, it works on chromium version 62.0.3189.0</p>
  
  <p><strong>Update:</strong>
  Trying it on Cefclient (Cef browser example) the application returns the following error:</p>
  
  <blockquote>
    <p><strong>Page failed to load.</strong><br>
    URL: whatsapp://send?phone=15991078823<br>
    Error: ERR_UNKNOWN_URL_SCHEME (-302)<br>
    ERR_UNKNOWN_URL_SCHEME</p>
  </blockquote>