func (mx *Mux) Connect(pattern string, handlerFn http.HandlerFunc) {
	mx.handle(mCONNECT, pattern, handlerFn)
}
func (mx *Mux) Connect(pattern string, handlerFn http.HandlerFunc) {
	mx.handle(mCONNECT, pattern, handlerFn)
}
// Connect adds the route `pattern` that matches a CONNECT http method to
// execute the `handlerFn` http.HandlerFunc.