pub const ORIGIN: &str = "Origin";
pub const HOST: &str = "Host";
pub const CONNECTION: &str = "Connection";
pub const CONTENT_LENGTH: &str = "Content-Length";
pub const CONTENT_TYPE: &str = "Content-Type";
pub const CONTENT_ENCODING: &str = "Content-Encoding";
pub const TRANSFER_ENCODING: &str = "Transfer-Encoding";
pub const USER_AGENT: &str = "User-Agent";
pub const ACCEPT: &str = "Accept";
pub const ACCEPT_ENCODING: &str = "Accept-Encoding";
pub const TE: &str = "TE";
pub const UPGRADE: &str = "Upgrade";
pub const WEBSOCKET_KEY: &str = "Sec-Websocket-Key";
pub const WEBSOCKET_ACCEPT_KEY: &str = "Sec-websocket-Accept";
pub const WEBSOCKET_VERSION: &str = "Sec-Websocket-Version";
pub const WEBSOCKET_PROTOCOL: &str = "Sec-Websocket-Protocol";
pub const WEBSOCKET_EXTENSIONS: &str = "Sec-Websocket-Extensions";
pub const CONNECTION_L: &str = "connection";
pub const CONTENT_LENGTH_L: &str = "content-length";
pub const CONTENT_TYPE_L: &str = "content-type";
pub const CONTENT_ENCODING_L: &str = "content-encoding";
pub const TRANSFER_ENCODING_L: &str = "transfer-encoding";
pub const HOST_L: &str = "host";