> Fetch clean Markdown by appending `.md` to any page URL under https://signalwire.com/docs or requesting it with the HTTP header `Accept: text/markdown`. The root index at https://signalwire.com/docs/llms.txt lists the available documentation indexes. # WebSocketAdapter > Browser-compatible WebSocket constructor type. ```ts type WebSocketAdapter = (url, protocols?) => WebSocketClient ``` Browser-compatible WebSocket constructor type. ## **Parameters** | Parameter | Type | | ------------ | ----------------------- | | `url` | `string` \| `URL` | | `protocols?` | `string` \| `string`\[] | ## **Returns** `WebSocketClient` > Browser-compatible WebSocket constructor type.