[TYPO3-core] RFC: #8441: pageErrorHandling doesn't work with relative files in a subfolder TYPO3 install

[Jeff Segars]

Helmut Hummel wrote:
> In TYPO3 it is possible to set a domain record like "domain.tld/prefix" 
> which works like a charm, but not with error documents. Domain record 
> handling is the main reason why it is a bad idea setting 
> pagenotfoundhandling to "prefix/404.html" (just in case you have not 
> known this before).

This patch actually came out of a small multi-domain 
pageNotFound_handling extension that Christoph and I are working on :)

We add a link field to each domain record so that you pick a custom 
error page for that domain only.