[x] I have looked at all other issues and this is not a duplicate
[x] I have been able to replicate this

Hey! I tried to use Dynmap on Spigot server running on itzg/docker-minecraft-server with Spiget-API but it does not work as expected, please take a look at this issue I wrote about two weeks ago:
itzg/docker-minecraft-server#1378

Especially take a look at these messages in the previous issue:
itzg/docker-minecraft-server#1378 (comment)
and itzg/docker-minecraft-server#1378 (comment).

If you need more information, I'll be happy helping you. I left the asked template information empty for now since it probably does not matter but if you want, I can provide it.

Thank you!

duplicate of #3638

Thanks @JurgenKuyper ! I'll address it on the container side by providing the download page for the user to visit.