Update app.py

app.py

@@ -135,7 +135,7 @@ This JSON format will be used to store and manage invoices in a structured and u
         )
         content = response.choices[0].message.content.strip()
         print("Before content:", content)
-        cleaned_content = re.sub(r'^```json\n', '', content)  # Remove '```json\n' at the beginning
+        cleaned_content = re.sub(r'^.*```json\n', '', content)  # Remove '```json\n' at the beginning
         cleaned_content = re.sub(r'\n```$', '', cleaned_content)  # Remove '\n```' at the end
 
         # Step 2: Parse the cleaned content as JSON