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Mattermost, Inc.

Untrusted letsencrypt certificate for mobile apps

Summary

untrusted letsencrypt certificate for mobile apps 1.39.0

Steps to reproduce

Version de Mattermost : 5.30.6{PATCH}
Version du schéma de la base de données : 5.30.0
Base de données : postgres

I am on a self hosted instance : gitlab+mattermost. no docker
i installed a gitlab mattermost instance behind a haproxy.
I configured haproxy to make the ssl offloading with lets encrypts certificate.

Mobile apps show me

Using http complaint as weel on mobile apps android

browser does not complain about certificate.

Expected behavior

Mobile apps must not send untrusted certificate message

Observed behavior

i did not find revelant log on server

how can i troubleshoot this .