Update app.py

app.py

@@ -149,12 +149,12 @@ def generator(messages):
     return results
 
 def extract_content(text):
-  """Extracts the JSON content from the given text."""
-  match = re.search(r'\{.*?\}', text, re.DOTALL)
-  if match:
-    return match.group(0)
-  else:
-    return None
+    """Extracts the JSON content from the given text."""
+    match = re.search(r'\{.*?\}\s*\{.*?\}', text, re.DOTALL)
+    if match:
+        return match.group(0)
+    else:
+        return None
 
 async def main(link):
     if not link.startswith("http://") and not link.startswith("https://"):