IE cannot download files over SSL served by WebSphere

Question

IE 7 & 8 both throw an error when users attempt to download a csv file over https.

Internet Explorer cannot download downloadPage.jsf. Internet Explor

Answer 1

Had the exact same issue when the app server was configured to use SSL. The trick for me to get it working after the https was turned on:

   string attachment = "attachment; filename=" + rptName + ".xls" + "";    

    HttpContext.Current.Response.Clear();
    HttpContext.Current.Response.ClearHeaders();
    HttpContext.Current.Response.AddHeader("content-disposition", attachment);
    HttpContext.Current.Response.AddHeader("Cache-Control", "private, max-age=1");

    HttpContext.Current.Response.ContentType = "application/vnd.ms-excel";

    HttpContext.Current.Response.Charset = "";
    HttpContext.Current.Response.Buffer = true;
    HttpContext.Current.Response.Cache.SetExpires(DateTime.Now.AddMinutes(1));