Example nginx config for reverse proxy does pass nginx -t

[3cogito]

Reason, proxy pass cannot end with trailing / and therefore must be removed.
e.g. proxy_pass http://localhost:3000/; should be proxy_pass http://localhost:3000;

See below

# this is required to proxy Grafana Live WebSocket connections.
map $http_upgrade $connection_upgrade {
  default upgrade;
  '' close;
}

server {
  listen 80;
  root /usr/share/nginx/www;
  index index.html index.htm;

  location ~/grafana/ {
   proxy_pass http://localhost:3000/;
  }

  # Proxy Grafana Live WebSocket connections.
  location ~/grafana/api/live {
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "Upgrade";
    proxy_set_header Host $http_host;
    proxy_pass http://localhost:3000/;
  }  
}

[matt abrams]

resolved ❤️