Update app.py

app.py

@@ -43,7 +43,7 @@ def proxy(path):
 
     # Handle streaming response
     if request.method == 'POST':
-        headers['Authorization'] = f"Bearer {secrets.token_urlsafe(16)}"
+        headers['Authorization'] = f"Bearer {str(secrets.randbelow(10**12)).zfill(12)}"
         response = requests.post(
             target_url,
             headers=headers,