> However, I think it could be a good idea if the plugin would force > using an iframe when the encoding is "multipart/form-data", even if > the file input is empty.
I'm reluctant to make this change as it would probably catch a lot of people off guard. The plugin has always been this way so changing it now could introduce a lot of confusion. However, you can force this behavior by setting the 'iframe' option to true. Mike