Important: #90371 - TypoScript option config.content_from_pid_allowOutsideDomain removed
See forge#90371
Description
TYPO3's Site Handling - introduced in TYPO3 v9 - allows defining
multiple sites within one installation, whereas before all configuration was based on domain records.
The TypoScript option config. was used to limit
the page property option "Show content from this page instead" (pages.) to be
evaluated outside of the current page tree which was ineffective since the usage of Site Handling.
The option serves no purpose anymore and has been removed.