title: Json response download in IE(7~10)
body: <p>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.</p>
  
  <p>IE tries to download the JSON as a file !</p>
  
  <p>I have IE10 and testing it on IE7 to 10 by changing browser mode and document mode from the debugger.</p>
  
  <p>I am using asp.net mvc4, the file upload action have HttpPost attribute and i am returning json response using <strong>return Json(myObject);</strong></p>
  
  <p>And here are my http headers</p>
  
  <p><strong>Request</strong></p>
  
  <pre><code>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
  DNT 1
  Connection  Keep-Alive
  Cache-Control   no-cache
  </code></pre>
  
  <p><strong>Response</strong></p>
  
  <pre><code>Key Value
  Response    HTTP/1.1 200 OK
  Server  ASP.NET Development Server/11.0.0.0
  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
  </code></pre>
  
  <p>I tried a few suggestions but so far back to square one !</p>