[TYPO3-v4] translateable 404 error page with realurl

[Simon Schaufelberger]

Hello dear community,

I have setup a website with realurl and the following config:

$TYPO3_CONF_VARS['FE']['pageNotFound_handling'] = '/404-not-found.html';

The languages are like /de/, /en/, ... in the URL.

The error page itself is translated and I tried to call the error page
like this:

[...] = '/404-not-found.html?L='.$_GET['L'];

but that also didn't work.

Is there any solution for that?
-- 
Kind regards,

Schaufi from punkt.de