title: Custom 404 error page for non-existent actions in TYPO3
body: <p>For displaying a standard 404 error page when a non-existent Extbase action is called I use the "mvc.throwPageNotFoundExceptionIfActionCantBeResolved" parameter.</p>
  
  <p>But how can I make TYPO3 invoke the error handler defined in [FE][pageNotFound_handling]?</p>