ASP MVC3 FileResult with accents + IE8 - bugged?

Question

If the file name contains accents, it works as expected in Opera, FF, Chrome and IE9.

But in IE8 file type is \"unknown file type\", and shows \"file\" as the file n

Answer 1

Is this a file the user is uploading to your system at some point? If so, restrict the use of accents in a file name. If not - don't use accents in your file names :).

Answer 2

Try adding the following line inside your controller action:

Response.HeaderEncoding = Encoding.GetEncoding("iso-8859-1");

You may take a look at the following blog post which discusses those issues. Unfortunately there isn't a general solution which will work among all browsers.