From b19bf20516f0f755e6cc827116999d83b1c53b63 Mon Sep 17 00:00:00 2001
From: Frank <33519926+Conengmo@users.noreply.github.com>
Date: Sat, 13 Jun 2020 12:23:09 +0200
Subject: [PATCH] Use synchronous ajax in GeoJson

---
 folium/features.py | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/folium/features.py b/folium/features.py
index 8f121294e..c710bfb32 100644
--- a/folium/features.py
+++ b/folium/features.py
@@ -428,17 +428,20 @@ class GeoJson(Layer):
             {% if this.style %}
                 style: {{ this.get_name() }}_styler,
             {%- endif %}
-        }).addTo({{ this._parent.get_name() }});
+        });
 
         function {{ this.get_name() }}_add (data) {
-            {{ this.get_name() }}.addData(data);
+            {{ this.get_name() }}
+                .addData(data)
+                .addTo({{ this._parent.get_name() }});
         }
         {%- if this.embed %}
             {{ this.get_name() }}_add({{ this.data|tojson }});
         {%- else %}
-            $.ajax({{ this.embed_link|tojson }}, {dataType: 'json'})
+            $.ajax({{ this.embed_link|tojson }}, {dataType: 'json', async: false})
                 .done({{ this.get_name() }}_add);
         {%- endif %}
+
         {% endmacro %}
         """)  # noqa