problems displaying images embedded in issues

gitlab-ce~2278648

Summary

I can view images in issues just fine when they are embedded in GitLab syntax ![img](URL), but I have problems seeing them when they are embedded via html: the image is missing and only shows up when reloading the page. Reloading the page always fixes the problem, but the image is never displayed when the page is first loaded.

steps to reproduce

Could you have a look here please. Can you reproduce the problem ?

my result

expected behavior

image in red circle should be displayed