Squid and Firewall Rules - FailOver(Help)

[vulcassio]

Hello everyone.

First of all, thanks for joining this post to try helping me out.
I current have a FailOver on two WAN connections:
1 - my default WAN link
2 - my link for critical applications
Squid is running on port 3128 and is using my default gateway.
Follow below my firewall rule forcing it to use my FailOver:
IPv4 TCP/UDP * * * 3128 FailOverLink1-Link2 qOthersLow
where Link 1 is tier 1 and link2 is tier 2.

My problem is when my link 1 is down all applications that dont use proxy obbey my FailOver, but squid is not. Making http access impossible.
Is something missing ?
Can anyone give me some help on this issue?

Thanks everyone.