TYPO3 Core

Okay I've fiddled around trying to find a workaround or bugfix on this.

Middleware 'typo3/cms-frontend/shortcut-and-mountpoint-redirect' (\TYPO3\CMS\Frontend\Middleware\ShortcutAndMountPointRedirect::class) depends on TSFE-Initialization, but logically it should be fired before TSFE because TSFE Handler will handle it as 404.

So I think the Middleware 'typo3/cms-frontend/shortcut-and-mountpoint-redirect' is not ment to handle this "problem", it's a cause somewhere in TSFE Middleware ('typo3/cms-frontend/prepare-tsfe-rendering') as before giving over to 404 Handler there should be checked if it is a Page of Doktype "Shortcut" with external URL.

Ok here is what i've figured out.

The whole thing is screwed because SiteFinder only works for ONE specific site. Every page which is out of site-scope (current Domain) seems to be ignored.

I think the whole problem is even before TSFE processing! I've been trying to hook in with own Middleware trying to reach the original request (which is currently only possible using $_SERVER) since the original Request is stored no-where. So I only can reach the 404-Request or the Request fallback'ed to Rootsite Pid.

I can't believe nobody thought about Shortcut's which could leave the current Domain.

Patch set 2 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/c/Packages/TYPO3.CMS/+/70432

Patch set 3 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/c/Packages/TYPO3.CMS/+/70432

Patch set 4 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/c/Packages/TYPO3.CMS/+/70432

Patch set 5 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/c/Packages/TYPO3.CMS/+/70432

Patch set 6 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/c/Packages/TYPO3.CMS/+/70432

Patch set 7 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/c/Packages/TYPO3.CMS/+/70432

Patch set 8 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/c/Packages/TYPO3.CMS/+/70432

Patch set 9 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/c/Packages/TYPO3.CMS/+/70432

Patch set 10 for branch main of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/c/Packages/TYPO3.CMS/+/70432

Patch set 11 for branch main of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/c/Packages/TYPO3.CMS/+/70432

Patch set 1 for branch 11.5 of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/c/Packages/TYPO3.CMS/+/72582

Patch set 2 for branch 11.5 of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/c/Packages/TYPO3.CMS/+/72582