I am having a user who is reporting that files are being displayed as raw data in his browser. He uses Internet Explorer.

The files are being served via a .ashx handler file and it has been working until.

This is the relevant part of my .ashx handler:

context.Response.Clear()
context.Response.AppendHeader("Content-Disposition", "attachment; filename=" + name)
context.Response.AppendHeader("Content-Length", size.ToString)
context.Response.ContentType = "application/pdf"
context.Response.TransmitFile(fullname)
context.Response.Flush()
HttpContext.Current.ApplicationInstance.CompleteRequest()

Can anyone figure something out of this screenshot? enter image description here

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