TYPO3 Core

I am running multiple websites under one root (umbrella) website.

Technically this means that I have a root page containing a TypoScript template and a domain record (sys_domain). The subpages of this root page are actual websites. These pages do not contain TypoScript templates, but do have a domain record.

This setup makes the websites accessable through the root website or directly via their own domain.

The difference with running TYPO3 with multiple websites each having their own root template is that the websites in my setup have to have their own url segment. Otherwise they couldn't be accessable through the root website.

The problem is that the option "typolinkCheckRootline" does not work for this situation. Why? Because $GLOBALS['TSFE']->tmpl->rootLine⁰ will always be the same for each website.

This makes it impossible to link to a page from another website.

(issue imported from #M7016)