Update app.py

app.py

@@ -124,11 +124,12 @@ def load_chain():
     
     return qa
 
-chat_history = []
 
 def get_answer(question):
     '''Generate an answer from the chain'''
-    
+
+    chat_history = []
+
     chain = load_chain()
     result = chain({"question": question, "chat_history": chat_history})