Good analogy

about REST

HTTP Error 411. The request must be chunked or have a content length

add Content-Length:  header

For System.ServiceModel.Web references

make sure the target is .net 4.0 and not client

QueryString object in Server.Transfer

is retained  in the new page - beware

Get IE to display JsonResult instead of prompt to download

return Json(bm, "text/html", JsonRequestBehavior.AllowGet);

Html.ValidationSummary always showing

added this to fix

   <style type ="text/css">
    .validation-summary-valid { display:none; }
    </style>

[ControllerAction] deprecated and illegal

use [NonAction] instead