@sncf the wifi login page on the TGV uses a Symantec certificate and will soon stop working in browsers. See https://security.googleblog.com/2017/09/chromes-plan-to-distrust-symantec.html … and https://blog.mozilla.org/security/2018/03/12/distrust-symantec-tls-certificates/ … as well as https://blog.mozilla.org/security/2018/10/10/delaying-further-symantec-tls-certificate-distrust/ … for more information.
// cc @sleevi_ @wthayer