folium choropleth and geojson not rendering in jupyter - pandas

Question

I cannot get a folium map to display in jupyter when all 33 London boroughs are included in the geojson file
but
I can get the folium map to display if fewer boroughs are included in the geojson file. (up to 23)
If I save the map as an html file and open it separately it works just fine.
here is the version of the code that works (just using the first 23 boroughs).
m = folium.Map(location=[51.5, -0.1], zoom_start=10)
m.choropleth(
geo_data={"type":geo_london["type"],"features":geo_london["features"][:23]}, # 23 of the boroughs
data=df["Underground"],
columns=["LA",'Underground'],
key_on='feature.properties.name',
fill_color='BuPu',
fill_opacity=0.9,
line_opacity=0.2,
legend_name='Underground Useage',
highlight=True
)
Here is the version that doesn't work:
m = folium.Map(location=[51.5, -0.1], zoom_start=10)
m.choropleth(
geo_data= geo_london, # all 33 boroughs
data=df["Underground"],
columns=["LA",'Underground'],
key_on='feature.properties.name',
fill_color='BuPu',
fill_opacity=0.9,
line_opacity=0.2,
legend_name='Underground Useage',
highlight=True
)
Other things to note:
I parsed the geojson file using json within python so geo_london is a
dictionary
if I do m.save('mymap.html') and open the map the second
version also works fine.
I have the same problem if I don't use the data in a
chorepleth but instead use folium.GeoJson(geo_london).add_to(m)
folium 0.5.0
the data is a pandas data series

Answer 1

Probably you are describing the bug explained here https://github.com/python-visualization/folium/issues/768 (Folium displays nothing if number of overlaid images > 80 on Chrome).
Try to use a different browser like Firefox or Safari.