NOTE: Test needs to be performed on `advanced` theme.
# place `<inp2:m_Redirect template="platform/login/register" response_code="301"/>` on top of `platform/sitemap.tpl` template
# doing `HEAD` request to the `/platform/sitemap.html` url with `follow_location` option disabled
# confirm, that instead of page content the 301 redirect request was received (usual redirect is with 302 code) to the `/platform/login/register.html` page