National Flags

Hello @Ebs , possible due to hardcoded path below the pictures do not appear in the environment located in folder (/forum) instead of root (/). Is there any way to fix it without nginx proxy?
https://github.com/Ebsy/discourse-nationalflags/blob/7ecd0ab82dc8b94a34b16d6a00ee6dbd70b3a440/assets/javascripts/discourse/templates/connectors/user-profile-primary/show-user-card.hbs#L3