chromium/iridium/firefox no dns resolve on rtable

Hi,

I have a wireguard configuration in my system with local unbound dns
resolver. In the past, I'd configured my wireguard as a separated
rdomain, so whenever I needed to run my browser, I did one of these 2
options:

1. change /etc/resolv.conf and user a global dns resolver,

2. run an unwind locally for my wg rdomain: route -T<n> exec unwind

This was working for me, until recently that I changed my configuration
to have a single rdomain with different rtables. I've added these
routes to my rtable:

route -T<n> add 127/8 127.0.0.1
route -T<n> add default <my-wg-endpoint>

I've tested this configuration with curl and confirm that it is OK:

route -T<n> exec curl -s https://location.ipfire.org | grep Hey

But whenever I run chromium or iridium or firefox-esr on this rtable,
it could not resolve any dns name (they displays websites such as
https://1.1.1.1 which doesn't require any dns resolving correctly).

I've tested different nameservers, global and local with same rtable,
but it didn't work.

What is the problem?
How may I debug it?


Thanks in Advance