{
  "id": "api/websocket-close-code-1008-policy-violation",
  "signature": "WebSocket close code 1008: Policy Violation",
  "signature_zh": "WebSocket关闭代码1008：策略违规",
  "regex": "WebSocket\\s*close\\s*code\\s*1008\\s*[:]?\\s*Policy\\s*Violation",
  "domain": "api",
  "category": "protocol_error",
  "subcategory": null,
  "root_cause": "Server closed WebSocket connection due to a policy violation such as invalid authentication, unsupported subprotocol, or message format violation.",
  "root_cause_type": "generic",
  "root_cause_zh": "服务器因策略违规关闭WebSocket连接，例如无效身份验证、不支持的子协议或消息格式违规。",
  "versions": [
    {
      "version": "WebSocket RFC 6455",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "Socket.IO 4.7.0",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "ws@8.16.0 (Node.js)",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "Spring WebSocket 6.1.0",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "",
      "why_fails": "Reconnecting without addressing the underlying policy violation (e.g., expired token)",
      "fail_rate": 0.85,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "Assuming it's a network timeout and increasing timeout values",
      "fail_rate": 0.6,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "Changing WebSocket URL path without verifying authentication credentials",
      "fail_rate": 0.7,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "Check and refresh authentication token before reconnecting: `ws = new WebSocket('wss://api.example.com/ws', { headers: { Authorization: `Bearer ${newToken}` } })`",
      "success_rate": 0.9,
      "how": "Check and refresh authentication token before reconnecting: `ws = new WebSocket('wss://api.example.com/ws', { headers: { Authorization: `Bearer ${newToken}` } })`",
      "condition": "",
      "sources": []
    },
    {
      "action": "Verify the subprotocol matches server expectations: `ws = new WebSocket('wss://api.example.com/ws', ['graphql-ws'])`",
      "success_rate": 0.8,
      "how": "Verify the subprotocol matches server expectations: `ws = new WebSocket('wss://api.example.com/ws', ['graphql-ws'])`",
      "condition": "",
      "sources": []
    },
    {
      "action": "Ensure messages are in the expected format (e.g., JSON): `ws.send(JSON.stringify({ type: 'subscribe', channel: 'updates' }))`",
      "success_rate": 0.85,
      "how": "Ensure messages are in the expected format (e.g., JSON): `ws.send(JSON.stringify({ type: 'subscribe', channel: 'updates' }))`",
      "condition": "",
      "sources": []
    }
  ],
  "workarounds_zh": [
    "重新连接前检查并刷新身份验证令牌：`ws = new WebSocket('wss://api.example.com/ws', { headers: { Authorization: `Bearer ${newToken}` } })`",
    "验证子协议是否与服务器期望匹配：`ws = new WebSocket('wss://api.example.com/ws', ['graphql-ws'])`",
    "确保消息格式符合预期（例如JSON）：`ws.send(JSON.stringify({ type: 'subscribe', channel: 'updates' }))`"
  ],
  "transition_graph": {
    "leads_to": [],
    "preceded_by": [],
    "frequently_confused_with": []
  },
  "official_doc_url": "https://datatracker.ietf.org/doc/html/rfc6455#section-7.4.1",
  "official_doc_section": null,
  "error_code": "1008",
  "verification_tier": "ai_generated",
  "confidence": 0.83,
  "fix_success_rate": 0.75,
  "resolvable": "partial",
  "first_seen": "2024-05-12",
  "last_confirmed": "2024-06-01",
  "last_updated": "2024-06-01",
  "evidence_count": 1,
  "tags": [],
  "locale": "en",
  "aliases": []
}