error with etherpad

dockerfiles/front/Dockerfile

@@ -13,7 +13,7 @@ RUN npx ng build
 FROM nginx:alpine
 
 COPY --from=build /app/dist/tlcfront /usr/share/nginx/html
-COPY nginx.conf /etc/nginx/conf.d/default.conf
+COPY nginxFront.conf /etc/nginx/conf.d/default.conf
 
 EXPOSE 80
 

dockerfiles/front/nginx.conf

@@ -1,16 +1,29 @@
 server {
-    location /api/polls {
-        proxy_pass http://back:8080;
-        proxy_set_header Host $http_host;
+    listen 80;
+    server_name _;
+
+    root /usr/share/nginx/html;
+    index index.html;
+
+    # Proxy /api and all subpaths to backend service (back container on port 8080)
+    location /api/ {
+        proxy_pass http://back:8080/api/;
+        proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_http_version 1.1;
+        proxy_set_header Connection "";
     }
 
+    # Also handle /api without trailing slash
+    location = /api {
+        proxy_pass http://back:8080/api;
+    }
+
+    # SPA fallback for client-side routing
     location / {
-        root   /usr/share/nginx/html;
-        index  index.html index.htm;
-        try_files $uri $uri/ /index.html?$args;
+        try_files $uri $uri/ /index.html;
     }
 
     error_page   500 502 503 504  /50x.html;