download_url and 404: Not Found

I have added <obs_url>https://MYSERVER</obs_url> and <download_url>https://MYSERVER/repos</download_url> to my on-prem OBS config. "osc repourls" returns https://MYSERVER/repos/MYPROJECT/SLES_15_SP3/MYPROJECT.repo, but when I click on "Go to download repository" link, then I get "404: Not Found". On my server I can find the /srv/obs/repos/MYPROJECT/SLES_15_SP3/MYPROJECT.repo file. Please advise.