'advproxy errmsg invalid proxy port' => 'Invalid proxy port',
'advproxy errmsg invalid upstream proxy' => 'Invalid upstream proxy IP/hostname',
'advproxy errmsg invalid upstream proxy username or password setting' => 'Invalid upstream proxy username or password setting',
+'advproxy errmsg invalid url' => 'Invalid URL',
'advproxy errmsg invalid user' => 'Username does not exist',
'advproxy errmsg ldap base dn' => 'LDAP base DN required',
'advproxy errmsg ldap bind dn' => 'LDAP bind DN username and password required',