Images in GitLab issues are broken in Mattermost

For install issues with GitLab omnibus, please post to https://gitlab.com/gitlab-org/omnibus-gitlab/issues For feature requests, please see: http://www.mattermost.org/feature-requests/ For troubleshooting questions, please post on the forums: http://forum.mattermost.org/

For defects with GitLab Mattermost other than installation that can be reproduced (e.g. issues with GitLab SSO, GitLab webhook integration, etc.), please help share details of the defect in the following format:

Summary

Images from GitLab issues are broken in Mattermost.

Steps to reproduce

Respond to an issue an GitLab including an image.

Expected behavior

The image would also show in Mattermost or the image would be replaced by a link/an icon.

Observed behavior

A broken image symbol.

Example:

Possible fixes

Prepend the GitLab host to image URLs:

Alternatively, make it a link: