tried reverse proxying with nginx to get around cross domain security problemen with basex, not working

Docker/nginx/default.conf

@@ -0,0 +1,49 @@
+worker_processes 1;
+
+events { worker_connections 1024; }
+
+http {
+  upstream docker-api {
+      server basex:8984;
+  }
+  upstream docker-client {
+      server client:8988;
+  }
+
+  proxy_set_header   Host $host;
+  proxy_set_header   X-NginX-Proxy true;
+  proxy_set_header   X-Real-IP $remote_addr;
+  proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
+  proxy_set_header   X-Forwarded-Host $server_name;
+
+  server {
+      listen 80;
+      root /var/www/html;
+      index index.html;
+      charset utf-8;
+      server_name dev.gdp.fr;
+
+      access_log on;
+      error_log  /var/log/nginx/error.log error;
+
+      sendfile off;
+
+      client_max_body_size 100m;
+
+      location / {
+          try_files $uri $uri/ index.html;
+      }
+
+      location /api {
+        rewrite ^/api/(.*) /$1 break;
+        proxy_redirect off;
+        proxy_pass http://docker-api;
+      }
+
+      location /client {
+        rewrite ^/client/(.*) /$1 break;
+        proxy_redirect off;
+        proxy_pass http://docker-client;
+      }
+  }
+}