Tidying

webinterface.py

@@ -114,7 +114,8 @@ def getPersonAvatarUrl(baseDir: str,personUrl: str,personCache: {}) -> str:
     """Returns the avatar url for the person
     """
     personJson = getPersonFromCache(baseDir,personUrl,personCache)    
-    if personJson:
+    if not personJson:
+        return None
     # get from locally stored image
     actorStr=personJson['id'].replace('/','-')
     avatarImagePath=baseDir+'/cache/avatars/'+actorStr