diff --git a/graphistry/plotter.py b/graphistry/plotter.py
index 8b6632aa5f..dd11a95b3e 100644
--- a/graphistry/plotter.py
+++ b/graphistry/plotter.py
@@ -334,13 +334,14 @@ def plot(self, graph=None, nodes=None, name=None, render=None, skip_upload=False
             info = PyGraphistry._etl2(dataset)
 
         viz_url = PyGraphistry._viz_url(info, self._url_params)
-        full_url = '%s:%s' % (PyGraphistry._config['protocol'], viz_url)
+        cfg_client_protocol_hostname = PyGraphistry._config['client_protocol_hostname']
+        full_url = ('%s:%s' % (PyGraphistry._config['protocol'], viz_url)) if cfg_client_protocol_hostname is None else viz_url
 
         if render == False or (render == None and not self._render):
             return full_url
         elif util.in_ipython():
             from IPython.core.display import HTML
-            return HTML(util.make_iframe(viz_url, self._height, PyGraphistry._config['protocol']))
+            return HTML(util.make_iframe(full_url, self._height))
         else:
             import webbrowser
             webbrowser.open(full_url)
diff --git a/graphistry/util.py b/graphistry/util.py
index ec5f927f09..533711a142 100644
--- a/graphistry/util.py
+++ b/graphistry/util.py
@@ -12,7 +12,7 @@
 from distutils.version import LooseVersion, StrictVersion
 
 
-def make_iframe(raw_url, height, protocol):
+def make_iframe(url, height):
     id = uuid.uuid4()
 
     scrollbug_workaround='''
@@ -29,7 +29,7 @@ def make_iframe(raw_url, height, protocol):
                     oallowfullscreen="true" msallowfullscreen="true"
                     style="width:100%%; height:%dpx; border: 1px solid #DDD">
             </iframe>
-        ''' % (id, protocol + ':' + raw_url, height)
+        ''' % (id, url, height)
 
     return iframe + scrollbug_workaround
 
@@ -85,4 +85,4 @@ def error(msg):
 def merge_two_dicts(a, b):
     c = a.copy()
     c.update(b)
-    return c
\ No newline at end of file
+    return c