Hello.
Is it possible to disable “xml-stylesheet” output in sitemap.xml, please?
In the case that the sitemap is out of its original domain (e.g. live WP admin is hidden by Authentication), then the XML sitemap contains an error loading XSLT styles.
Another solution on the plugin side could be to output XSLT styles in the domain/website root.
An alternative (and not recommended) solution is to comment lines containing “xml-stylesheet” in the “google-sitemap-plugin.php”.