python
runtime_error
ai_generated
true
werkzeug.exceptions.BadRequest:400 错误请求:会话 cookie 太大。
werkzeug.exceptions.BadRequest: 400 Bad Request: The session cookie is too large.
ID: python/flask-session-cookie-too-large
80%修复率
87%置信度
0证据数
2024-10-10首次发现
版本兼容性
| 版本 | 状态 | 引入 | 弃用 | 备注 |
|---|---|---|---|---|
| 2.x | active | — | — | — |
| 3.x | active | — | — | — |
根因分析
存储在客户端 cookie 中的会话数据超过了浏览器的大小限制(通常为 4KB)。
English
The session data stored in the client-side cookie exceeds the browser's size limit (typically 4KB).
解决方案
-
95% 成功率
Use Flask-Session with Redis or a database backend.
-
85% 成功率
Remove unnecessary keys from `session`.
无效尝试
常见但无效的做法:
-
90% 失败
Browser limit is fixed; increasing server config doesn't help.
-
70% 失败
Flask's session is signed, not compressed; manual compression is complex.