diff --git a/confluent/httpapi.py b/confluent/httpapi.py
index 4c2f8921..dece786a 100644
--- a/confluent/httpapi.py
+++ b/confluent/httpapi.py
@@ -247,36 +247,35 @@ def resourcehandler(env, start_response):
 
 
 def _assemble_html(responses, resource, querydict, url):
-    yield '
'
-    yield 'Confluent REST Explorer: ' + resource + ''
-    yield ''
 
diff --git a/confluent/pluginapi.py b/confluent/pluginapi.py
index 44d43626..cdac95f0 100644
--- a/confluent/pluginapi.py
+++ b/confluent/pluginapi.py
@@ -112,6 +112,8 @@ def delete_node_collection(collectionpath, configmanager):
         node = collectionpath[-1]
         configmanager.del_nodes([node])
         yield msg.DeletedResource()
+    else:
+        raise Exception("Not implemented")
 
 def enumerate_node_collection(collectionpath, configmanager):
     if collectionpath == [ 'node' ]:  #it is simple '/node/', need a list of nodes