CB Login return_url

Hello
I used core Joomla login and its return_url parameter feature so the user can be dinamicaly redirected after login to a specific page of the site.
Now we use CB we need to change our urls

$login_url = 'index.php?option=users&view=login&return='.urlencode(base64_encode($uri_string));
to
$login_url = 'index.php?option=com_comprofiler&view=login&return='.urlencode(base64_encode($uri_string));

But redirection after cb login doesn't work.
When inspeccting the CB login view page code , the return hidden field has the homepage url as encoded value and not the return url wich is as a parameter in the current page url

Checking the code, it appears the transmitted URL is identified as NOT INTERNAL by cb login helper's getReturnUrl and Application::Router()->isInternal( $returnUrl ) Therefore it is reset as 'index.php'




What am I doing wrong?
Thank you

Return URLs should be non-SEO and begin with index.php. Please be sure that $uri_string is formatted in such a way. Also ensure that the login redirect url in your CB Login Module is empty otherwise that will override the return value in the URL. Given it's redirecting to home page that might be set to index.php already.

Hello Krileon, thanks for your quick reply.

Yes our return url is correctly encoded, non sef (the site doesn't use SEFurls) and starts with index.php...
index.php?option=com_xxxxxx&view=myproducts&Itemid=299&lang=fr

If I comment out line 107 in mod_cblogin/helper.php
//$returnUrl        =    'index.php';
it works as expected

This is because 
Application::Router()->isInternal( $returnUrl )
sees my URL as non isInternal
Wich is wrong as it obviously is an internal URL.

It seems a bug to me, but I maybe doing something wrong

here is how this is set

$app = Factory::getApplication();
if (!$app->getIdentity()->id){
            $app->enqueueMessage(Text::_('COM_LENDIO_YOU_MUST_LOGIN_FIRST'), 'warning');
            $return_url = Route::_('index.php?option=com_lendio&view=myproducts', false);
            $app->redirect(Route::_('index.php?option=com_comprofiler&view=login&return='.urlencode(base64_encode($return_url)), false));
}

This was working with com_users&view=login though

Any thought?

sees my URL as non isInternal
Wich is wrong as it obviously is an internal URL.

This would be the real problem as Joomla itself can't determine the URL belongs to Joomla.

here is how this is set

Don't pass the return url through Route::_ before encoding and setting it. Joomla itself does not do this for return URLs as it gets passed through routing during the redirect.

That was it. Thank you