Categories c#-4.0 http-headers internet-explorer json

Json response download in IE(7~10)

I am trying to upload a file and return a json response regarding properties(name, size etc) of the file. It works fine in all browsers except IE.

IE tries to download the JSON as a file !

I have IE10 and testing it on IE7 to 10 by changing browser mode and document mode from the debugger.

I am using mvc4, the file upload action have HttpPost attribute and i am returning json response using return Json(myObject);

And here are my http headers


Key Value
Request POST /File/UploadFile/ HTTP/1.1
Accept text/html, application/xhtml+xml, */*
Referer http://localhost:63903/
Accept-Language en-NZ
User-Agent Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Content-Type multipart/form-data; boundary=---------------------------7dc1e71330526
Accept-Encoding gzip, deflate
Host localhost:63903
Content-Length 1377002
Connection Keep-Alive
Cache-Control no-cache


Key Value
Response HTTP/1.1 200 OK
Server ASP.NET Development Server/
Date Tue, 18 Dec 2012 23:44:19 GMT
X-AspNet-Version 4.0.30319
X-AspNetMvc-Version 4.0
Cache-Control private
Content-Type application/json; charset=utf-8
Content-Length 154
Connection Close

I tried a few suggestions but so far back to square one !

You will need to return the json as text/html since IE does not know what to do with application/json contents..

return Json(myObject, "text/html");

Not sure but it might work (and it would be more correct if it does) to use text/x-json

return Json(myObject, "text/x-json");