The admin wants to create a new sitemap item of type hst:sitemapitem (under the path hst:sitemap/, he does not know which characters are valid for the URL path. There is no document about this.
Request: HST should have a document about sitemap item naming.
- Sitemap item with name as hst:sitemap/test@page: the page is accessible.
- Sitemap item with name hst:sitemap/test%40page: cannot access this page because it's not found.