Hello!
I tried to set up some image protection:
I found some how-to's and all pointed to $config['original_url_protection']='image' setting.
I set it up, and nothing happens.
I excepted that the url for image changed from i.php?/upload/<path to image> to anything what not show the real path of the image.
I purges everyting (templates, caches, etc), log out, and still see the path in the url.
(I tried to set up the $conf['derivative_url_style'] = 2; too)
What did i wrong?

Thanx

Piwigo version: 2.10.1
PHP version:   7.0.33-0ubuntu0.16.04.6
MySQL version: 5.7.20-0ubuntu0.16.04.1
Piwigo URL: http://