JS error when sharing diagram on staging env

[MrCoder]

It is not always reproducible, but the following DSL seems trigger this issue quite often. When it "Copy Link" spinner never stops.

Client->SGW."Get order by id" {
  svc.Get(id) {
    new X()
    rep."load order" {
      =="Start Here"==
      MF."load order from mainframe"
      =="End Here"==
      if(order == null) {
        @return 
        SGW->Client:404
      } else {
        return order
      }
      
      while(true) {
        svc.refresh(data)
      }
      processOrder()
    }
    return order
  }
  return response
}