redirect_sitemapxml should exit if wp_sitemaps_enabled is false

[jonoaldersonwp]

When XML sitemaps are disabled via wp_sitemaps_enabled, redirect_sitemapxml still runs and redirects requests from /sitemap.xml to /wp-sitemap.xml.

This is unintended behaviour; if the sitemaps are disabled, this redirect should be disabled.

See ​https://github.com/WordPress/wordpress-develop/blob/master/src/wp-includes/sitemaps/class-wp-sitemaps.php#L205

[swissspidy]

As discussed on Slack, the WP_Sitemaps class (and thus this redirect handler) is only initialized when wp_sitemaps_enabled is true, so this seems like a non-issue to me.

[jonoaldersonwp]

Agreed; reasonably convinced that this showed up in testing due to browser caching of the previously active 301.