带有查询参数的golang Chi路由器不起作用

I am working on a restful service in golang using chi. I am trying to create a route as below

r.Mount("/api/dest", router.NewDestRouter(chi.NewRouter(), destSrv).InitRoutes())

func (dr *DestRouter) InitRoutes() http.Handler {
    dr.router.Post("/{number}/product?version={v}", handlers.HandleProduct(dr.dest))
    return dr.router
}

But I try to hit this endpoint via post man I get a 404 not found

http://localhost:8345/api/dest/1235abc/product?version=1

May I know the issue here?