Deprecation: #86178 - Class ElementBrowserFramesetController¶
TYPO3\CMS\Recordlist\Controller\ElementBrowserFramesetController and the route
browser have been marked as deprecated and should not be used any longer.
If calling that controller class a PHP
E_USER_DEPRECATED error is triggered.
The route target is unused in core for a while already. Extensions are only affected
if they call the Backend route target
browser that renders the element browser
in a frameset.
Use the modal based element browser with the route