title: Dash Page not opening up
body: <p>I have a small piece of code here below. The issue here is the Dash Page does not start up. It pops a small icon naming "Loading...." , and the Page doesnt show up. I have tried couple of things but nothing works.</p>
  
  <pre><code>import dash
  import dash_core_components as dcc
  import dash_html_components as html
  
  app = dash.Dash()
  app.layout = html.Div('Dash Tutorials')
  
  if __name__ == '__main__':
      app.run_server(debug=True)
  </code></pre>
  
  <p>The main problem is server does starts and No error is shown. Would be a great help if someone could sort the reasons for this. Thanks in Advance.</p>
  
  <p>Regards,
  Nisarg</p>