FIX: print out the correct ip address when starting webagg (#13065)

tacaswell · timhoffm · commit e7719da6cad1 · 2018-12-30T00:37:34.000+01:00
closes #13055
diff --git a/lib/matplotlib/backends/backend_webagg.py b/lib/matplotlib/backends/backend_webagg.py
@@ -321,7 +321,8 @@ def trigger_manager_draw(manager):
     def show():
         WebAggApplication.initialize()
 
-        url = "http://127.0.0.1:{port}{prefix}".format(
+        url = "http://{address}:{port}{prefix}".format(
+            address=WebAggApplication.address,
             port=WebAggApplication.port,
             prefix=WebAggApplication.url_prefix)
 
