title: Choropleth maps not showing but white page
body: <p>I'm trying to make a choropleth figure and below is my sample code:</p>
  <pre><code>import json
  import numpy as np
  import pandas as pd
  import plotly.express as px
  import plotly.graph_objects as go
  import plotly.io as pio
  
  pio.renderers.default='browser'
  vietnam_state=json.load(open(&quot;diaphantinhenglish.geojson&quot;,&quot;r&quot;))
  df = pd.DataFrame({
      'Name': ['Ha Noi','Ha Giang','Cao Bang','Bac Kan','Tuyen Quang'],
      'Count': [3757,26,43,27,208]})
  
  #df
  Name    Count
  0   Ha Noi  3757
  1   Ha Giang    26
  2   Cao Bang    43
  3   Bac Kan 27
  4   Tuyen Quang 208
  
  fig=px.choropleth(
      df,
      geojson=vietnam_state,
      featureidkey=&quot;properties.Name&quot;,
      locations=&quot;Name&quot;,
      color='Count',
      title=&quot;ABC&quot;,
      color_continuous_scale=&quot;Aggrnyl&quot;)
  
  fig.update_geos(fitbounds=&quot;locations&quot;,visible=False)
  fig.show()
  </code></pre>
  <p>It's worked on my laptop with internet connection as below:
  <a href="https://i.stack.imgur.com/tVKjH.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/tVKjH.png" alt="enter image description here" /></a></p>
  <p>But on my PC without internet connection, maps doesn't show and below is console:
  <a href="https://i.stack.imgur.com/lHssK.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/lHssK.png" alt="enter image description here" /></a></p>
  <p>So I would like to ask what should I do. Thanks and best regards.</p>