title: Using MVC3, the bluimp jQuery File Upload plugin asks me to download the file?
body: <p>Greetings,</p>
  
  <p>I'm using <a href="https://github.com/blueimp/jQuery-File-Upload" rel="nofollow noreferrer">https://github.com/blueimp/jQuery-File-Upload</a> (downloaded the version as of 5/21/2011) along with ASP.NET MVC3.</p>
  
  <p>And here are the versions of jquery I am using:</p>
  
  <p>-jquery-ui-1.8.11.min.js <br/>
  -jquery-1.6.1.js</p>
  
  <p>I was able to upload and save the file to designated folder, and then I return the Json object. Then the IE 7 browser pops a "File Download" dialog and asks me to download a file named "upload75bea5a4" with no extension. 
  I also testing in FF 3.6, and it too pops up a "file download" dialog and asks me to download a file named "UploadFiles" (which is the controller action name).
  Any idea what's going on here?  Do I need to set the content-type in the header explicitly?</p>
  
  <p>Thanks much in advance.</p>
  
  <p>This is basically the same question posed by Ray in this thread:</p>
  
  <p><a href="https://stackoverflow.com/questions/5086189/jquery-file-upload-plugin-asks-me-to-download-the-file-what-is-wrong/6079386#6079386">jQuery File Upload plugin asks me to download the file, what is wrong?</a></p>
  
  <p>No working solution was posed however.</p>