I am using the XML Sitemap & Google News Sitemap Feeds plugin (http://wordpress.org/extend/plugins/xml-sitemap-feed/) for generation of my sitemap.xml and sitemap-news.xml file.
The sitemaps are being generated successfully, but WP Super Cache is not caching them. Instead of creating a cache file, as I would expect, an empty directory is created under my cache domain directory (/public_html/wp-content/cache/supercache/apopn.com/sitemap.xml/)
WP Super Cache is caching the rest of my site correctly, just not the sitemap files.
I am running WordPress 3.2.1, WP Super Cache .9.9.9 and XML Sitemap & Google News Sitemap Feeds 3.9.1
Any suggestions would be greatly appreciated!