{
  "id": "python/flask-session-cookie-too-large",
  "signature": "werkzeug.exceptions.BadRequest: 400 Bad Request: The session cookie is too large.",
  "signature_zh": "werkzeug.exceptions.BadRequest：400 错误请求：会话 cookie 太大。",
  "regex": "werkzeug\\.exceptions\\.BadRequest:\\ 400\\ Bad\\ Request:\\ The\\ session\\ cookie\\ is\\ too\\ large\\.",
  "domain": "python",
  "category": "runtime_error",
  "subcategory": null,
  "root_cause": "The session data stored in the client-side cookie exceeds the browser's size limit (typically 4KB).",
  "root_cause_type": "generic",
  "root_cause_zh": "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）。",
  "versions": [
    {
      "version": "2.x",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "3.x",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "",
      "why_fails": "Browser limit is fixed; increasing server config doesn't help.",
      "fail_rate": 0.9,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "Flask's session is signed, not compressed; manual compression is complex.",
      "fail_rate": 0.7,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "",
      "success_rate": 0.95,
      "how": "Use Flask-Session with Redis or a database backend.",
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "success_rate": 0.85,
      "how": "Remove unnecessary keys from `session`.",
      "condition": "",
      "sources": []
    }
  ],
  "workarounds_zh": [],
  "transition_graph": {
    "leads_to": [],
    "preceded_by": [],
    "frequently_confused_with": []
  },
  "official_doc_url": null,
  "official_doc_section": null,
  "error_code": null,
  "verification_tier": "ai_generated",
  "confidence": 0.87,
  "fix_success_rate": 0.8,
  "resolvable": "true",
  "first_seen": "2024-10-10",
  "last_confirmed": "2025-01-01",
  "last_updated": "2025-01-01",
  "evidence_count": 0,
  "tags": [],
  "locale": "en",
  "aliases": []
}