bridge should listen on / bind to localhost on ipv6 (::1) and ipv4 (127.0.0.1)

[masterflitzer]

bridge should listen on / bind to localhost on ipv6 (::1) and ipv4 (127.0.0.1)

Expected Behavior

bridge listens on ::1 and 127.0.0.1 (dual stack localhost)

Current Behavior

bridge listens only on 127.0.0.1 (single stack localhost without option to use ipv6)

Possible Solution

change code to listen on ipv6 (::1) and/or ipv4 (127.0.0.1) depending on availability of either

Steps to Reproduce

1. start proton mail bridge
2. see only 127.0.0.1 is offered as hostname
3. confirm with this command: ss -anptu | grep -Fi listen | grep -Fi bridge

Version Information

v3.14.0

Context (Environment)

• linux
• i want to set ::1 as hostname in thunderbird (as would be the correct way in an ipv6-only env even if 127.0.0.1 is always there)