I have a button with Action\ Export, i'm exporting to csv file, the code works fine on the test server with AJAX and on my desktop, it exports the csv file to the c:\data folder. When i deploy it on the production server, it opens a separated window and displays comma separated values and displays the message that "your file has been opened in another window, if not click here".
The amazing part is that it works fine if i use IE plugin instead of AJAX.
I tried Qlikview Server version. 10 and version 11, latest releases.