herzla

thanks a lot, this is how I solved it for me, while I still wonder what is against forwarding all information in default:

add_filter(‘sublanguage_redirect_uncanonical_url’, function ($url) {
    $requestUri = $_SERVER[‘REQUEST_URI’];
    $parsedUrl = parse_url($url, PHP_URL_PATH);
    $firstPath = ‘/’ . explode(‘/’, trim($parsedUrl, ‘/’))[0];
    $baseUrl = parse_url($url, PHP_URL_SCHEME) . ‘://’ . parse_url($url, PHP_URL_HOST) . $firstPath;
    $url = $baseUrl . $requestUri;
    return $url;
});

when I enable error output in php an WP I see this messages:

Deprecated: strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /wp-includes/functions.php on line 7329

Deprecated: str_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated in /wp-includes/functions.php on line 2189

for me this plugin is perferct, just this bug is a little bad: in page editor the save-button is jumping down when I enable sublanguage (with all other plugins disabled) and crashes the sidebar and top messages also a little

okay,
i found it in plugins/multiple-domain/MultipleDomain.php line 892
saldy that plugin is not tested anymore as it works great