Add body

main.py

@@ -16,7 +16,7 @@ function load()
 	    attribution: '&copy; <a href="http://www.openstreetmap.org/copyright">OpenStreetMap</a>'
 	}).addTo(map);
 }
-window.onload = load;
+
 """
 
 @rt('/')
@@ -25,7 +25,7 @@ def get():
 		Link(rel="stylesheet", href="https://unpkg.com/leaflet@1.4.0/dist/leaflet.css"),
 		Style(style),
 		Script(src="https://unpkg.com/leaflet@1.4.0/dist/leaflet.js"),
-		Div(id='mapid'),
+		Body(onload='load()', Div(id='mapid')),
 		Script(js)
 		)