Update appChatbot.py

appChatbot.py

@@ -35,6 +35,8 @@ vectorstore = None
 
 def replace_newlines_and_spaces(text):
     # Replace all newline characters with spaces
+    text= text.replace('\t\r','')     # tab, enter
+    text= text.replace('\xa0','')     # non-breaki
     text = text.replace("\n", " ")
     # Replace multiple spaces with a single space
     text = re.sub(r'\s+', ' ', text)