I am using Java servlets and a custom framework which has options to download generated reports in various formats (CSV, PDF, XML Spreadsheet).
This is done through a popup but does not seem to work when using content type of application/vnd.ms-excel in IE7. The popup appears but closes immediately. I have followed suggestions of setting Content-disposition to attachment but no luck.
From the research I've done, it definately seems to be something to do with the HTTP headers but I can't seem to get anything working.