filefield filefield_nginx_progress

I recently deployed a site to a BOA instance using a custom platform built using a custom platform w/ a Pressflow 6 core. Unfortunately I can't seem to get the FileField AJAX uploader to work. The uploads hit 100% and then respond with an HTTP error 0.

• All of our tests show that if you click submit the file will upload successfully.
• They AJAX uploader does actually upload the file, it just responds with an HTTP error 0 once the upload reaches 100%