Hello,

I upgraded to version 2.9.1 and now get the following error when logging in:

Piwigo a rencontré une erreur non récupérable
[Hacking attempt] the input parameter "redirect_decoded" is not valid
#1    check_input_parameter /(path to piwigo)/piwigo/identification.php(50)

I can still login if I go to the dedicated login page (identification.php) but not if I use the quick login form in the gallery menu. Same error on mobile and desktop.
I am using bootstrap darkroom theme.

Could it be linked to this change ?
[Github] Piwigo issue #706

Piwigo version: 2.9.1
PHP version: 7.0.19-1
MySQL version:  5.7.18
Piwigo URL: http://pixels.perlat.net

Thanks again for the great work!