We played with this a bit using both cloudfront and other cdns. While we did see some small improvements, it wasn't nearly as good as we were expecting on the u

We played with this a bit using both cloudfront and other cdns. While we did see some small improvements, it wasn't nearly as good as we were expecting on the upload side. It may be fixed now, but there were also many issues getting the proper headers to pass through cloudfront to s3 for chunked uploads.