I'm developing a Rails 2.3 project with the UJS file for Rails 3. Instead of the remote_form_fortags, I'm adding the data-remote attribute. This was running great on Safari and Firefox, but testing a form post on IE would result in the browser trying to save the file. There are a lot of posts regarding this issue, but none of them worked for me.
The fix ended up being very simple. Upgrade jQuery. The application was using 1.4.2. I upgraded to 1.4.3 and everything worked as it should under IE.