I have a page controller having two actions. One is index and one is download like below

        public async Task Index(ReportPage currentPage, string id)
        {
            /* Implementation of action. You can create your own view model class that you pass to the view or
             * you can pass the page type for simpler templates */

            // todo: check if the report id is valid

            Report report = null;
            ReportPageViewModel model = null;

            if (String.IsNullOrEmpty(id))
            {
                model = new ReportPageViewModel(currentPage, report);
                return View(model);
            }

            report = await RystadGlobal.api.GetReport(Authentication.GetTokenTypeFromCookie(), Authentication.GetTokenFromCookie(), int.Parse(id));

            model = new ReportPageViewModel(currentPage, report);
            return View(model);
        }

        public async Task Download(ReportPage currentPage, string id)
        {
            try
            {
                Report report = await RystadGlobal.api.GetReport(Authentication.GetTokenTypeFromCookie(), Authentication.GetTokenFromCookie(), int.Parse(id));

                string ext = Path.GetExtension(report.fileName);

                byte[] byteArray = await RystadGlobal.api.DownloadReport(RystadIdentity.Current.AuthenticatedUser.TokenType, RystadIdentity.Current.AuthenticatedUser.Token, report.Id);


                var name = RystadIdentity.Current.AuthenticatedUser.UserInfo.name;


                if (ext.ToLower() == ".pdf")
                    byteArray = PdfWatermarker.Watermark(byteArray, name);

                return File(byteArray, System.Net.Mime.MediaTypeNames.Application.Octet, report.fileName);

            }
            catch (Exception e)
            {
                throw new Exception("Something went wrong when downloading file.");
            }

        }

The issue is the Download action is working on localhost like

http://localhost:12345/ReportPage/Download/ID

but the same thing is not working on production

http://mywebsite/ReportPage/Download/ID

When I hit thsat page I get

Page could not be loaded

The link you specified does not work. This may either be the result of temporary maintenance or an incorrect link.

Any pointers?