WP Super cache conflict with WooCommerce downloadable products

WP Super cache conflicts with WooCommerce downloadable products.
When the cache is activated, then the download links for the digital products is not working.
When the download link is clicked, it shows a page with some rubbish code: https://i.imgur.com/5UiKeRJ.png

WP Supercache vaerion: 1.4.4
WC version: 2.3.7

If any one knows how to fix that, it will be greatly appreciated.

Thank you,
Alex

https://www.ads-software.com/plugins/wp-super-cache/