edited nginx config

frontend/nginx.conf

@@ -9,6 +9,14 @@ server {
     try_files $uri $uri/ /index.html;
   }
 
+  location = /backend {
+    return 301 /backend/;
+  }
+
+  location /backend/ {
+    proxy_pass http://ca-lose-backend:8004/;
+  }
+
   location ~* \.(?:js|mjs|css|png|jpg|jpeg|gif|ico|svg|woff2?)$ {
     expires 1y;
     access_log off;

frontend/src/utils/sender.ts

@@ -17,7 +17,7 @@ interface FormData {
 
 export const submitFormData = async (data: FormData) => {
   try {
-    const response = await fetch("http://localhost:8004/default/frontend", {
+    const response = await fetch("/backend/default/frontend", {
       method: "POST",
       headers: {
         "Content-Type": "application/json",