https://bluemap.bluecolored.de/wiki/webserver/NginxProxy.html#bluemap-on-a-subdirectory-of-your-website

  location /map/ {
    proxy_pass http://127.0.0.1:8100/;

that cannot be run on my server
the error of web is 404

  location ^~ /map {
    proxy_pass http://127.0.0.1:8100/; 

this can be run

i dont know why

What i did / Steps to reproduce

Expected result

Actual result

Context

BlueMap Version:
1.0.0-fabric-1.16.1

Which setting works for you depends on the rest of your nginx config. The setting in the wiki is an example of how it could work, but you'll have to adapt it for your setup. Which you did 👍 but it's not an error in the wiki :)