Network Session - Https


Configured Dual WAN connection from various ISP vendors, having two different network gateway IPs.

I working on HTTPS session (Internet web link) web page in side the network, The network session will be establish through WAN1, If the WAN1 ISP Down.

My question is:
Is this https session still alive?
Is this session https network packets diverted through WAN2?
or need to re-connect https session through WAN2?

IMP: for http this will work, Im looking for solution for https.