Been using WP e-Commerce with the "WP e-Commerce S3 Downloads" plugin to serve downloads of files hosted on Amazon S3. Worked fine until I installed WP Supercache, after which the downloads fail every time (finishes instantly and results in a 20b empty file). Deactivating WP Supercache makes the downloads work again instantly.
Does anybody know a fix for this? Need to use caching plugin because host complaining about daft wordpress resource usage.
Current settings in wp-supercache:
* Advanced settings:
- Caching mode: mod_rewrite, php, legacy (tried all)
- Everything else: deselected
* All other settings: deselected.