Opencart can't load Region / State dropdown
问题 I'm using opencart 1.5.5.1 with a theme (sancart) and I'm getting a very annoying bug. In the modules checkout/cart and account/register the dropdown menu for Region/State field won't load the relative values (i guess are called zone or zone_id) and remains empty, blank. The same function instead works well in the module checkout/checkout proceeding both as Guest or user registration. Googleing around I've notice that is a pretty common bug with many themes, above all for those using SSH