[API reference](https://evolu.dev/docs/api-reference) › [@evolu/common](https://evolu.dev/docs/api-reference/common) › [WebSocket](https://evolu.dev/docs/api-reference/common/WebSocket) › WebSocketCreateError

Defined in: [packages/common/src/WebSocket.ts:283](https://github.com/evoluhq/evolu/blob/f082fdd974e25fa0eb1134e4b34f15b740af8fe2/packages/common/src/WebSocket.ts#L283)

An error that occurs when the platform's WebSocket constructor throws, for
example for a URL it rejects, a `ws:` URL on an `https:` page, or a Content
Security Policy that blocks the URL. These fail the same way on every
attempt, so the [WebSocket](https://evolu.dev/docs/api-reference/common/WebSocket/interfaces/WebSocket) stops connecting. The thrown value is not
always an `Error`.

## Extends

- [`Typed`](https://evolu.dev/docs/api-reference/common/Type/interfaces/Typed)\<`"WebSocketCreateError"`\>

## Properties

<a id="error"></a>

### error

```ts
readonly error: unknown;
```

Defined in: [packages/common/src/WebSocket.ts:284](https://github.com/evoluhq/evolu/blob/f082fdd974e25fa0eb1134e4b34f15b740af8fe2/packages/common/src/WebSocket.ts#L284)

---

<a id="type"></a>

### type

```ts
readonly type: "WebSocketCreateError";
```

Defined in: [packages/common/src/Type.ts:15402](https://github.com/evoluhq/evolu/blob/f082fdd974e25fa0eb1134e4b34f15b740af8fe2/packages/common/src/Type.ts#L15402)

#### Inherited from

[`Typed`](https://evolu.dev/docs/api-reference/common/Type/interfaces/Typed).[`type`](https://evolu.dev/docs/api-reference/common/Type/interfaces/Typed#type)