Hi All! We have had many clients over the years have problems with SSL sites within DotNetNuke and export to CSV/XLS within Internet Explorer 8 and 9. Over time we researched this and added the appropriate settings within our modules to get around the SSL and IE problems. I believe this was related to adding the following setting to the export code within Dynamic Forms:
Response.AddHeader("Pragma", "public")
Response.AddHeader("Cache-Control", "max-age=0")
Response.AppendHeader("content-disposition", "attachment; filename=" & strFileName)
This fixed the issue for the majority of our clients (as far as I know). There are also these threads related to this from within Microsoft:
http://support.microsoft.com/kb/323308
For another client who continued to have these problems he found that the setting “Do not save encrypted pages to disk” also affects this within IE under Advanced Settings (see screenshot below). We will continue to research to see if there are methods that we can also get around this but at this time I do not know of any method since the file itself is being called as HTTPS.
Thanks!
-Chad