webpack - 未处理的承诺拒绝 SyntaxError Internet Explorer

Question

我正在使用 Vuejs、vuex、webpack、babel-polyfill 和 axios。

此错误仅出现在我们生产服务器上的 Internet Explorer 中。它适用于所有其他浏览器和本地主机。我不确定为什么会这样。

我试图在 vuex 和 axios 论坛上寻找这个问题，但没有运气。

我很感激帮助。

这是来自 IE11 控制台的消息。

谢谢！

Unhandled promise rejection SyntaxError
   "Unhandled promise rejection"
   {
      [functions]: ,
      __proto__: { },
      ABORT_ERR: 20,
      code: 12,
      constructor: { },
      DATA_CLONE_ERR: 25,
      DOMSTRING_SIZE_ERR: 2,
      HIERARCHY_REQUEST_ERR: 3,
      INDEX_SIZE_ERR: 1,
      INUSE_ATTRIBUTE_ERR: 10,
      INVALID_ACCESS_ERR: 15,
      INVALID_CHARACTER_ERR: 5,
      INVALID_MODIFICATION_ERR: 13,
      INVALID_NODE_TYPE_ERR: 24,
      INVALID_STATE_ERR: 11,
      message: "SyntaxError",
      name: "SyntaxError",
      NAMESPACE_ERR: 14,
      NETWORK_ERR: 19,
      NO_DATA_ALLOWED_ERR: 6,
      NO_MODIFICATION_ALLOWED_ERR: 7,
      NOT_FOUND_ERR: 8,
      NOT_SUPPORTED_ERR: 9,
      PARSE_ERR: 81,
      QUOTA_EXCEEDED_ERR: 22,
      SECURITY_ERR: 18,
      SERIALIZE_ERR: 82,
      SYNTAX_ERR: 12,
      TIMEOUT_ERR: 23,
      TYPE_MISMATCH_ERR: 17,
      URL_MISMATCH_ERR: 21,
      VALIDATION_ERR: 16,
      WRONG_DOCUMENT_ERR: 4
   }

Unhandled promise rejection SyntaxError
   "Unhandled promise rejection"
   {
      [functions]: ,
      __proto__: { },
      ABORT_ERR: 20,
      code: 12,
      constructor: { },
      DATA_CLONE_ERR: 25,
      DOMSTRING_SIZE_ERR: 2,
      HIERARCHY_REQUEST_ERR: 3,
      INDEX_SIZE_ERR: 1,
      INUSE_ATTRIBUTE_ERR: 10,
      INVALID_ACCESS_ERR: 15,
      INVALID_CHARACTER_ERR: 5,
      INVALID_MODIFICATION_ERR: 13,
      INVALID_NODE_TYPE_ERR: 24,
      INVALID_STATE_ERR: 11,
      message: "SyntaxError",
      name: "SyntaxError",
      NAMESPACE_ERR: 14,
      NETWORK_ERR: 19,
      NO_DATA_ALLOWED_ERR: 6,
      NO_MODIFICATION_ALLOWED_ERR: 7,
      NOT_FOUND_ERR: 8,
      NOT_SUPPORTED_ERR: 9,
      PARSE_ERR: 81,
      QUOTA_EXCEEDED_ERR: 22,
      SECURITY_ERR: 18,
      SERIALIZE_ERR: 82,
      SYNTAX_ERR: 12,
      TIMEOUT_ERR: 23,
      TYPE_MISMATCH_ERR: 17,
      URL_MISMATCH_ERR: 21,
      VALIDATION_ERR: 16,
      WRONG_DOCUMENT_ERR: 4
   }

Unhandled promise rejection SyntaxError
   "Unhandled promise rejection"
   {
      [functions]: ,
      __proto__: { },
      ABORT_ERR: 20,
      code: 12,
      constructor: { },
      DATA_CLONE_ERR: 25,
      DOMSTRING_SIZE_ERR: 2,
      HIERARCHY_REQUEST_ERR: 3,
      INDEX_SIZE_ERR: 1,
      INUSE_ATTRIBUTE_ERR: 10,
      INVALID_ACCESS_ERR: 15,
      INVALID_CHARACTER_ERR: 5,
      INVALID_MODIFICATION_ERR: 13,
      INVALID_NODE_TYPE_ERR: 24,
      INVALID_STATE_ERR: 11,
      message: "SyntaxError",
      name: "SyntaxError",
      NAMESPACE_ERR: 14,
      NETWORK_ERR: 19,
      NO_DATA_ALLOWED_ERR: 6,
      NO_MODIFICATION_ALLOWED_ERR: 7,
      NOT_FOUND_ERR: 8,
      NOT_SUPPORTED_ERR: 9,
      PARSE_ERR: 81,
      QUOTA_EXCEEDED_ERR: 22,
      SECURITY_ERR: 18,
      SERIALIZE_ERR: 82,
      SYNTAX_ERR: 12,
      TIMEOUT_ERR: 23,
      TYPE_MISMATCH_ERR: 17,
      URL_MISMATCH_ERR: 21,
      VALIDATION_ERR: 16,
      WRONG_DOCUMENT_ERR: 4
   }

Unhandled promise rejection SyntaxError
   "Unhandled promise rejection"
   {
      [functions]: ,
      __proto__: { },
      ABORT_ERR: 20,
      code: 12,
      constructor: { },
      DATA_CLONE_ERR: 25,
      DOMSTRING_SIZE_ERR: 2,
      HIERARCHY_REQUEST_ERR: 3,
      INDEX_SIZE_ERR: 1,
      INUSE_ATTRIBUTE_ERR: 10,
      INVALID_ACCESS_ERR: 15,
      INVALID_CHARACTER_ERR: 5,
      INVALID_MODIFICATION_ERR: 13,
      INVALID_NODE_TYPE_ERR: 24,
      INVALID_STATE_ERR: 11,
      message: "SyntaxError",
      name: "SyntaxError",
      NAMESPACE_ERR: 14,
      NETWORK_ERR: 19,
      NO_DATA_ALLOWED_ERR: 6,
      NO_MODIFICATION_ALLOWED_ERR: 7,
      NOT_FOUND_ERR: 8,
      NOT_SUPPORTED_ERR: 9,
      PARSE_ERR: 81,
      QUOTA_EXCEEDED_ERR: 22,
      SECURITY_ERR: 18,
      SERIALIZE_ERR: 82,
      SYNTAX_ERR: 12,
      TIMEOUT_ERR: 23,
      TYPE_MISMATCH_ERR: 17,
      URL_MISMATCH_ERR: 21,
      VALIDATION_ERR: 16,
      WRONG_DOCUMENT_ERR: 4
   }

Unhandled promise rejection SyntaxError
   "Unhandled promise rejection"
   {
      [functions]: ,
      __proto__: { },
      ABORT_ERR: 20,
      code: 12,
      constructor: { },
      DATA_CLONE_ERR: 25,
      DOMSTRING_SIZE_ERR: 2,
      HIERARCHY_REQUEST_ERR: 3,
      INDEX_SIZE_ERR: 1,
      INUSE_ATTRIBUTE_ERR: 10,
      INVALID_ACCESS_ERR: 15,
      INVALID_CHARACTER_ERR: 5,
      INVALID_MODIFICATION_ERR: 13,
      INVALID_NODE_TYPE_ERR: 24,
      INVALID_STATE_ERR: 11,
      message: "SyntaxError",
      name: "SyntaxError",
      NAMESPACE_ERR: 14,
      NETWORK_ERR: 19,
      NO_DATA_ALLOWED_ERR: 6,
      NO_MODIFICATION_ALLOWED_ERR: 7,
      NOT_FOUND_ERR: 8,
      NOT_SUPPORTED_ERR: 9,
      PARSE_ERR: 81,
      QUOTA_EXCEEDED_ERR: 22,
      SECURITY_ERR: 18,
      SERIALIZE_ERR: 82,
      SYNTAX_ERR: 12,
      TIMEOUT_ERR: 23,
      TYPE_MISMATCH_ERR: 17,
      URL_MISMATCH_ERR: 21,
      VALIDATION_ERR: 16,
      WRONG_DOCUMENT_ERR: 4
   }

Unhandled promise rejection SyntaxError
   "Unhandled promise rejection"
   {
      [functions]: ,
      __proto__: { },
      ABORT_ERR: 20,
      code: 12,
      constructor: { },
      DATA_CLONE_ERR: 25,
      DOMSTRING_SIZE_ERR: 2,
      HIERARCHY_REQUEST_ERR: 3,
      INDEX_SIZE_ERR: 1,
      INUSE_ATTRIBUTE_ERR: 10,
      INVALID_ACCESS_ERR: 15,
      INVALID_CHARACTER_ERR: 5,
      INVALID_MODIFICATION_ERR: 13,
      INVALID_NODE_TYPE_ERR: 24,
      INVALID_STATE_ERR: 11,
      message: "SyntaxError",
      name: "SyntaxError",
      NAMESPACE_ERR: 14,
      NETWORK_ERR: 19,
      NO_DATA_ALLOWED_ERR: 6,
      NO_MODIFICATION_ALLOWED_ERR: 7,
      NOT_FOUND_ERR: 8,
      NOT_SUPPORTED_ERR: 9,
      PARSE_ERR: 81,
      QUOTA_EXCEEDED_ERR: 22,
      SECURITY_ERR: 18,
      SERIALIZE_ERR: 82,
      SYNTAX_ERR: 12,
      TIMEOUT_ERR: 23,
      TYPE_MISMATCH_ERR: 17,
      URL_MISMATCH_ERR: 21,
      VALIDATION_ERR: 16,
      WRONG_DOCUMENT_ERR: 4
   }

Unhandled promise rejection SyntaxError
   "Unhandled promise rejection"
   {
      [functions]: ,
      __proto__: { },
      ABORT_ERR: 20,
      code: 12,
      constructor: { },
      DATA_CLONE_ERR: 25,
      DOMSTRING_SIZE_ERR: 2,
      HIERARCHY_REQUEST_ERR: 3,
      INDEX_SIZE_ERR: 1,
      INUSE_ATTRIBUTE_ERR: 10,
      INVALID_ACCESS_ERR: 15,
      INVALID_CHARACTER_ERR: 5,
      INVALID_MODIFICATION_ERR: 13,
      INVALID_NODE_TYPE_ERR: 24,
      INVALID_STATE_ERR: 11,
      message: "SyntaxError",
      name: "SyntaxError",
      NAMESPACE_ERR: 14,
      NETWORK_ERR: 19,
      NO_DATA_ALLOWED_ERR: 6,
      NO_MODIFICATION_ALLOWED_ERR: 7,
      NOT_FOUND_ERR: 8,
      NOT_SUPPORTED_ERR: 9,
      PARSE_ERR: 81,
      QUOTA_EXCEEDED_ERR: 22,
      SECURITY_ERR: 18,
      SERIALIZE_ERR: 82,
      SYNTAX_ERR: 12,
      TIMEOUT_ERR: 23,
      TYPE_MISMATCH_ERR: 17,
      URL_MISMATCH_ERR: 21,
      VALIDATION_ERR: 16,
      WRONG_DOCUMENT_ERR: 4
   }

Unhandled promise rejection SyntaxError
   "Unhandled promise rejection"
   {
      [functions]: ,
      __proto__: { },
      ABORT_ERR: 20,
      code: 12,
      constructor: { },
      DATA_CLONE_ERR: 25,
      DOMSTRING_SIZE_ERR: 2,
      HIERARCHY_REQUEST_ERR: 3,
      INDEX_SIZE_ERR: 1,
      INUSE_ATTRIBUTE_ERR: 10,
      INVALID_ACCESS_ERR: 15,
      INVALID_CHARACTER_ERR: 5,
      INVALID_MODIFICATION_ERR: 13,
      INVALID_NODE_TYPE_ERR: 24,
      INVALID_STATE_ERR: 11,
      message: "SyntaxError",
      name: "SyntaxError",
      NAMESPACE_ERR: 14,
      NETWORK_ERR: 19,
      NO_DATA_ALLOWED_ERR: 6,
      NO_MODIFICATION_ALLOWED_ERR: 7,
      NOT_FOUND_ERR: 8,
      NOT_SUPPORTED_ERR: 9,
      PARSE_ERR: 81,
      QUOTA_EXCEEDED_ERR: 22,
      SECURITY_ERR: 18,
      SERIALIZE_ERR: 82,
      SYNTAX_ERR: 12,
      TIMEOUT_ERR: 23,
      TYPE_MISMATCH_ERR: 17,
      URL_MISMATCH_ERR: 21,
      VALIDATION_ERR: 16,
      WRONG_DOCUMENT_ERR: 4
   }

Unhandled promise rejection SyntaxError
   "Unhandled promise rejection"
   {
      [functions]: ,
      __proto__: { },
      ABORT_ERR: 20,
      code: 12,
      constructor: { },
      DATA_CLONE_ERR: 25,
      DOMSTRING_SIZE_ERR: 2,
      HIERARCHY_REQUEST_ERR: 3,
      INDEX_SIZE_ERR: 1,
      INUSE_ATTRIBUTE_ERR: 10,
      INVALID_ACCESS_ERR: 15,
      INVALID_CHARACTER_ERR: 5,
      INVALID_MODIFICATION_ERR: 13,
      INVALID_NODE_TYPE_ERR: 24,
      INVALID_STATE_ERR: 11,
      message: "SyntaxError",
      name: "SyntaxError",
      NAMESPACE_ERR: 14,
      NETWORK_ERR: 19,
      NO_DATA_ALLOWED_ERR: 6,
      NO_MODIFICATION_ALLOWED_ERR: 7,
      NOT_FOUND_ERR: 8,
      NOT_SUPPORTED_ERR: 9,
      PARSE_ERR: 81,
      QUOTA_EXCEEDED_ERR: 22,
      SECURITY_ERR: 18,
      SERIALIZE_ERR: 82,
      SYNTAX_ERR: 12,
      TIMEOUT_ERR: 23,
      TYPE_MISMATCH_ERR: 17,
      URL_MISMATCH_ERR: 21,
      VALIDATION_ERR: 16,
      WRONG_DOCUMENT_ERR: 4
   }

Unhandled promise rejection SyntaxError
   "Unhandled promise rejection"
   {
      [functions]: ,
      __proto__: { },
      ABORT_ERR: 20,
      code: 12,
      constructor: { },
      DATA_CLONE_ERR: 25,
      DOMSTRING_SIZE_ERR: 2,
      HIERARCHY_REQUEST_ERR: 3,
      INDEX_SIZE_ERR: 1,
      INUSE_ATTRIBUTE_ERR: 10,
      INVALID_ACCESS_ERR: 15,
      INVALID_CHARACTER_ERR: 5,
      INVALID_MODIFICATION_ERR: 13,
      INVALID_NODE_TYPE_ERR: 24,
      INVALID_STATE_ERR: 11,
      message: "SyntaxError",
      name: "SyntaxError",
      NAMESPACE_ERR: 14,
      NETWORK_ERR: 19,
      NO_DATA_ALLOWED_ERR: 6,
      NO_MODIFICATION_ALLOWED_ERR: 7,
      NOT_FOUND_ERR: 8,
      NOT_SUPPORTED_ERR: 9,
      PARSE_ERR: 81,
      QUOTA_EXCEEDED_ERR: 22,
      SECURITY_ERR: 18,
      SERIALIZE_ERR: 82,
      SYNTAX_ERR: 12,
      TIMEOUT_ERR: 23,
      TYPE_MISMATCH_ERR: 17,
      URL_MISMATCH_ERR: 21,
      VALIDATION_ERR: 16,
      WRONG_DOCUMENT_ERR: 4
   }

Unhandled promise rejection SyntaxError
   "Unhandled promise rejection"
   {
      [functions]: ,
      __proto__: { },
      ABORT_ERR: 20,
      code: 12,
      constructor: { },
      DATA_CLONE_ERR: 25,
      DOMSTRING_SIZE_ERR: 2,
      HIERARCHY_REQUEST_ERR: 3,
      INDEX_SIZE_ERR: 1,
      INUSE_ATTRIBUTE_ERR: 10,
      INVALID_ACCESS_ERR: 15,
      INVALID_CHARACTER_ERR: 5,
      INVALID_MODIFICATION_ERR: 13,
      INVALID_NODE_TYPE_ERR: 24,
      INVALID_STATE_ERR: 11,
      message: "SyntaxError",
      name: "SyntaxError",
      NAMESPACE_ERR: 14,
      NETWORK_ERR: 19,
      NO_DATA_ALLOWED_ERR: 6,
      NO_MODIFICATION_ALLOWED_ERR: 7,
      NOT_FOUND_ERR: 8,
      NOT_SUPPORTED_ERR: 9,
      PARSE_ERR: 81,
      QUOTA_EXCEEDED_ERR: 22,
      SECURITY_ERR: 18,
      SERIALIZE_ERR: 82,
      SYNTAX_ERR: 12,
      TIMEOUT_ERR: 23,
      TYPE_MISMATCH_ERR: 17,
      URL_MISMATCH_ERR: 21,
      VALIDATION_ERR: 16,
      WRONG_DOCUMENT_ERR: 4
   }

Unhandled promise rejection SyntaxError
   "Unhandled promise rejection"
   {
      [functions]: ,
      __proto__: { },
      ABORT_ERR: 20,
      code: 12,
      constructor: { },
      DATA_CLONE_ERR: 25,
      DOMSTRING_SIZE_ERR: 2,
      HIERARCHY_REQUEST_ERR: 3,
      INDEX_SIZE_ERR: 1,
      INUSE_ATTRIBUTE_ERR: 10,
      INVALID_ACCESS_ERR: 15,
      INVALID_CHARACTER_ERR: 5,
      INVALID_MODIFICATION_ERR: 13,
      INVALID_NODE_TYPE_ERR: 24,
      INVALID_STATE_ERR: 11,
      message: "SyntaxError",
      name: "SyntaxError",
      NAMESPACE_ERR: 14,
      NETWORK_ERR: 19,
      NO_DATA_ALLOWED_ERR: 6,
      NO_MODIFICATION_ALLOWED_ERR: 7,
      NOT_FOUND_ERR: 8,
      NOT_SUPPORTED_ERR: 9,
      PARSE_ERR: 81,
      QUOTA_EXCEEDED_ERR: 22,
      SECURITY_ERR: 18,
      SERIALIZE_ERR: 82,
      SYNTAX_ERR: 12,
      TIMEOUT_ERR: 23,
      TYPE_MISMATCH_ERR: 17,
      URL_MISMATCH_ERR: 21,
      VALIDATION_ERR: 16,
      WRONG_DOCUMENT_ERR: 4
   }

Unhandled promise rejection SyntaxError
   "Unhandled promise rejection"
   {
      [functions]: ,
      __proto__: { },
      ABORT_ERR: 20,
      code: 12,
      constructor: { },
      DATA_CLONE_ERR: 25,
      DOMSTRING_SIZE_ERR: 2,
      HIERARCHY_REQUEST_ERR: 3,
      INDEX_SIZE_ERR: 1,
      INUSE_ATTRIBUTE_ERR: 10,
      INVALID_ACCESS_ERR: 15,
      INVALID_CHARACTER_ERR: 5,
      INVALID_MODIFICATION_ERR: 13,
      INVALID_NODE_TYPE_ERR: 24,
      INVALID_STATE_ERR: 11,
      message: "SyntaxError",
      name: "SyntaxError",
      NAMESPACE_ERR: 14,
      NETWORK_ERR: 19,
      NO_DATA_ALLOWED_ERR: 6,
      NO_MODIFICATION_ALLOWED_ERR: 7,
      NOT_FOUND_ERR: 8,
      NOT_SUPPORTED_ERR: 9,
      PARSE_ERR: 81,
      QUOTA_EXCEEDED_ERR: 22,
      SECURITY_ERR: 18,
      SERIALIZE_ERR: 82,
      SYNTAX_ERR: 12,
      TIMEOUT_ERR: 23,
      TYPE_MISMATCH_ERR: 17,
      URL_MISMATCH_ERR: 21,
      VALIDATION_ERR: 16,
      WRONG_DOCUMENT_ERR: 4
   }

Unhandled promise rejection SyntaxError
   "Unhandled promise rejection"
   {
      [functions]: ,
      __proto__: { },
      ABORT_ERR: 20,
      code: 12,
      constructor: { },
      DATA_CLONE_ERR: 25,
      DOMSTRING_SIZE_ERR: 2,
      HIERARCHY_REQUEST_ERR: 3,
      INDEX_SIZE_ERR: 1,
      INUSE_ATTRIBUTE_ERR: 10,
      INVALID_ACCESS_ERR: 15,
      INVALID_CHARACTER_ERR: 5,
      INVALID_MODIFICATION_ERR: 13,
      INVALID_NODE_TYPE_ERR: 24,
      INVALID_STATE_ERR: 11,
      message: "SyntaxError",
      name: "SyntaxError",
      NAMESPACE_ERR: 14,
      NETWORK_ERR: 19,
      NO_DATA_ALLOWED_ERR: 6,
      NO_MODIFICATION_ALLOWED_ERR: 7,
      NOT_FOUND_ERR: 8,
      NOT_SUPPORTED_ERR: 9,
      PARSE_ERR: 81,
      QUOTA_EXCEEDED_ERR: 22,
      SECURITY_ERR: 18,
      SERIALIZE_ERR: 82,
      SYNTAX_ERR: 12,
      TIMEOUT_ERR: 23,
      TYPE_MISMATCH_ERR: 17,
      URL_MISMATCH_ERR: 21,
      VALIDATION_ERR: 16,
      WRONG_DOCUMENT_ERR: 4
   }

Unhandled promise rejection SyntaxError
   "Unhandled promise rejection"
   {
      [functions]: ,
      __proto__: { },
      ABORT_ERR: 20,
      code: 12,
      constructor: { },
      DATA_CLONE_ERR: 25,
      DOMSTRING_SIZE_ERR: 2,
      HIERARCHY_REQUEST_ERR: 3,
      INDEX_SIZE_ERR: 1,
      INUSE_ATTRIBUTE_ERR: 10,
      INVALID_ACCESS_ERR: 15,
      INVALID_CHARACTER_ERR: 5,
      INVALID_MODIFICATION_ERR: 13,
      INVALID_NODE_TYPE_ERR: 24,
      INVALID_STATE_ERR: 11,
      message: "SyntaxError",
      name: "SyntaxError",
      NAMESPACE_ERR: 14,
      NETWORK_ERR: 19,
      NO_DATA_ALLOWED_ERR: 6,
      NO_MODIFICATION_ALLOWED_ERR: 7,
      NOT_FOUND_ERR: 8,
      NOT_SUPPORTED_ERR: 9,
      PARSE_ERR: 81,
      QUOTA_EXCEEDED_ERR: 22,
      SECURITY_ERR: 18,
      SERIALIZE_ERR: 82,
      SYNTAX_ERR: 12,
      TIMEOUT_ERR: 23,
      TYPE_MISMATCH_ERR: 17,
      URL_MISMATCH_ERR: 21,
      VALIDATION_ERR: 16,
      WRONG_DOCUMENT_ERR: 4
   }

Unhandled promise rejection SyntaxError
   "Unhandled promise rejection"
   {
      [functions]: ,
      __proto__: { },
      ABORT_ERR: 20,
      code: 12,
      constructor: { },
      DATA_CLONE_ERR: 25,
      DOMSTRING_SIZE_ERR: 2,
      HIERARCHY_REQUEST_ERR: 3,
      INDEX_SIZE_ERR: 1,
      INUSE_ATTRIBUTE_ERR: 10,
      INVALID_ACCESS_ERR: 15,
      INVALID_CHARACTER_ERR: 5,
      INVALID_MODIFICATION_ERR: 13,
      INVALID_NODE_TYPE_ERR: 24,
      INVALID_STATE_ERR: 11,
      message: "SyntaxError",
      name: "SyntaxError",
      NAMESPACE_ERR: 14,
      NETWORK_ERR: 19,
      NO_DATA_ALLOWED_ERR: 6,
      NO_MODIFICATION_ALLOWED_ERR: 7,
      NOT_FOUND_ERR: 8,
      NOT_SUPPORTED_ERR: 9,
      PARSE_ERR: 81,
      QUOTA_EXCEEDED_ERR: 22,
      SECURITY_ERR: 18,
      SERIALIZE_ERR: 82,
      SYNTAX_ERR: 12,
      TIMEOUT_ERR: 23,
      TYPE_MISMATCH_ERR: 17,
      URL_MISMATCH_ERR: 21,
      VALIDATION_ERR: 16,
      WRONG_DOCUMENT_ERR: 4
   }

Unhandled promise rejection SyntaxError
   "Unhandled promise rejection"
   {
      [functions]: ,
      __proto__: { },
      ABORT_ERR: 20,
      code: 12,
      constructor: { },
      DATA_CLONE_ERR: 25,
      DOMSTRING_SIZE_ERR: 2,
      HIERARCHY_REQUEST_ERR: 3,
      INDEX_SIZE_ERR: 1,
      INUSE_ATTRIBUTE_ERR: 10,
      INVALID_ACCESS_ERR: 15,
      INVALID_CHARACTER_ERR: 5,
      INVALID_MODIFICATION_ERR: 13,
      INVALID_NODE_TYPE_ERR: 24,
      INVALID_STATE_ERR: 11,
      message: "SyntaxError",
      name: "SyntaxError",
      NAMESPACE_ERR: 14,
      NETWORK_ERR: 19,
      NO_DATA_ALLOWED_ERR: 6,
      NO_MODIFICATION_ALLOWED_ERR: 7,
      NOT_FOUND_ERR: 8,
      NOT_SUPPORTED_ERR: 9,
      PARSE_ERR: 81,
      QUOTA_EXCEEDED_ERR: 22,
      SECURITY_ERR: 18,
      SERIALIZE_ERR: 82,
      SYNTAX_ERR: 12,
      TIMEOUT_ERR: 23,
      TYPE_MISMATCH_ERR: 17,
      URL_MISMATCH_ERR: 21,
      VALIDATION_ERR: 16,
      WRONG_DOCUMENT_ERR: 4
   }

Answer 1

当您创建的承诺被拒绝并且没有明确的承诺时，会出现此错误.catch。我唯一能建议你的是检查你所有的代码并验证所有的承诺.catch在某个时候都有'es。

此外，还有一个事件侦听器可以帮助您找出该承诺被拒绝的原因，以及它在代码中的确切位置：

window.addEventListener("unhandledrejection", function (event) {
  console.warn("WARNING: Unhandled promise rejection. Reason: " + event.reason, event);
});

链接：

• http://2ality.com/2016/04/unhandled-rejections.html
• https://googlechrome.github.io/samples/promise-rejection-events/
• https://developer.mozilla.org/en-US/docs/Web/Events/unhandledrejection