jQuery fileupload not working in IE 8 and 9

Question

This code works in FF and chrome. In IE 8 or 9 I get a 500 error saying a not

Answer 1

If by jQuery fileupload you mean using http://blueimp.github.com/jQuery-File-Upload/ then it clearly says in the browser support section that IE 10+ is required for every functionality they implemented.

https://github.com/blueimp/jQuery-File-Upload/wiki/Browser-support

If you meant another plugin, just disregard my comment.