Attempt #3 to fix CORS issue and docker build.

docker/nginx.conf

@@ -21,15 +21,17 @@ http {
 
         # Proxy IO requests
         location /socket.io/ {
-            proxy_pass http://localhost:8081;
+            proxy_pass http://0.0.0.0:8081;
             proxy_http_version 1.1;
             proxy_set_header Upgrade $http_upgrade;
             proxy_set_header Connection 'upgrade';
             proxy_set_header Host $host;
             proxy_cache_bypass $http_upgrade;
 
-            # CORS headers
+            # CORS settings
             add_header 'Access-Control-Allow-Origin' '*';
+            add_header 'Access-Control-Allow-Methods' '*';
+            add_header 'Access-Control-Allow-Headers' '*';
         }
 
         # Error pages

src/Terminal.jsx

@@ -73,7 +73,7 @@ export function NewTerminal({ hostConfig }) {
         let ioUrl = `${isSecure ? "https" : "http"}://${window.location.hostname}:8081/socket.io/`;
 
         if (window.location.hostname === "localhost") {
-            ioUrl = "http://localhost:8081";
+            ioUrl = "http://192.210.197.55:8000/socket.io/";
         }
 
         const socket = io(ioUrl);

src/backend/server.cjs

@@ -5,8 +5,9 @@ const SSHClient = require("ssh2").Client;
 const server = http.createServer();
 const io = socketIo(server, {
     cors: {
-        origin: "*",
+        origin: "*", // Allow all origins
-        methods: ["GET", "POST"]
+        methods: ["*"], // Allow all methods
+        allowedHeaders: ["*"], // Allow all headers
     }
 });