# HttpKnownHeaderNames.SecWebSocketProtocol

Kind: Field  
Namespace: `Sisk.Core.Http`  
Assembly: `Sisk.Core.dll`  
Source: https://docs.sisk-framework.org/api/Sisk.Core.Http.HttpKnownHeaderNames.SecWebSocketProtocol.html

## SecWebSocketProtocol {#Sisk_Core_Http_HttpKnownHeaderNames_SecWebSocketProtocol}

The HTTP Sec-WebSocket-Protocol header.

Used to specify subprotocols that the client wishes to use during the WebSocket connection.

```csharp
public const string SecWebSocketProtocol = "Sec-WebSocket-Protocol"
```

### Field Value

[string](https://learn.microsoft.com/dotnet/api/system.string)