December 11, 2007 —
SSL is great for protecting HTTP traffic, particularly if your portal is open to the Internet. But in some circumstances, it can cause issues with file downloads. If you get a blank page when you try to download a file (particularly using Collaboration Server), or an error that says something like:
The path or file name for C:Documents and SettingsuserLocal SettingsTemporary Internet FilesContent.IE5CBEFMKfile.ppt is invalid. Please check that the path and file name are correct.
… Chances are this is caused by an Internet Explorer option in Tools: Internet Options: Advanced called “Do not save encrypted files to disk”:
Because the portal is returning encrypted files over SSL, the browser is not saving them to a temporary location so they can be opened locally. Uncheck that box and you should be good to go!