Deprecation: #85124 - Redirecting urlHandler Hook Concept 

See forge#85124

Description 

The URL handler concept introduced in TYPO3 v7 to allow pages to do redirects has been deprecated in favor of using PSR-7 / PSR-15 middlewares.

The Redirect URL handlers were used for e.g. jumpURLs, pages that should redirect to an external URL or special handlings registered via the \TYPO3\CMS\Frontend\Http\UrlHandlerInterface.

All functionality and methods have been marked as deprecated and will be removed in TYPO3 v10.0.

Impact 

Calling $TSFE->initializeRedirectUrlHandlers() and $TSFE->redirectToExternalUrl() will trigger a PHP E_USER_DEPRECATED error.

Affected Installations 

TYPO3 Installations with extensions registering a urlHandler via $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['urlProcessing']['urlHandlers'] .

Migration 

Check the extension scanner if the site is affected and migrate to a PSR-15 middleware.