title: Getting error loading dependencies in chrome browser, when running plotly dash code
body: <p>I am new to plotly dash and trying to run this googled code to understand the output. When i run the below code in windows cmd prompt, the execution returns the URL-- <a href="http://127.0.0.1:3003" rel="nofollow noreferrer">http://127.0.0.1:3003</a>
  On pasting the above in Chrome browser, error loading dependencies is displayed in the browser window. Please find below the code.</p>
  
  <pre><code>import dash
  import dash_core_components as dcc
  import dash_html_components as html
  import plotly.graph_objs as go
  import pandas as pd
  
  
  df = pd.read_excel(
      "https://github.com/chris1610/pbpython/blob/master/data/salesfunnel.xlsx?raw=True"
  )
  
  pv = pd.pivot_table(df, index=['Name'], columns=["Status"], values=['Quantity'], aggfunc=sum, fill_value=0)
  
  
  trace1 = go.Bar(x=pv.index, y=pv[('Quantity', 'declined')], name='Declined')
  trace2 = go.Bar(x=pv.index, y=pv[('Quantity', 'pending')], name='Pending')
  trace3 = go.Bar(x=pv.index, y=pv[('Quantity', 'presented')], name='Presented')
  trace4 = go.Bar(x=pv.index, y=pv[('Quantity', 'won')], name='Won')
  
  app = dash.Dash()
  app.layout = html.Div(children=[
      html.H1(children='Sales Funnel Report'),
      html.Div(children='''National Sales Funnel Report.'''),
      dcc.Graph(
          id='example-graph',
          figure={
              'data': [trace1, trace2, trace3, trace4],
              'layout':
              go.Layout(title='Order Status by Customer', barmode='stack')
          })
  ])
  app.scripts.config.serve_locally = True
  app.css.config.serve_locally = True
  if __name__ == '__main__':
      app.run_server(port=3003)
  
  if __name__ == '__main__':
      app.run_server(debug=True)
  </code></pre>