UNSTABLE: New API, yet to be vetted.
Allows "hijacking" the connection that the request is associated with. This can be used to implement protocols that build on top of HTTP (eg. WebSockets).
Deno.upgradeHttp this function does not require that you respond
to the request with a
Response object. Instead this function returns
the underlying connection and first packet received immediately, and then
the caller is responsible for writing the response to the connection.
This method can only be called on requests originating the