edit cors routes

index.js

@@ -4,12 +4,23 @@ const cors = require("cors");
 
 const app = express();
 const corsOptions = {
-  origin: "http://localhost:3000/",
+  origin: "*",
   credentials: true,
   optionSucessStatus: 200,
+  origin: true,
 };
 app.use(cors(corsOptions));
 
+app.use((req, res, next) => {
+  res.header("Access-Control-Allow-Origin", req.headers.origin);
+  res.header("Access-Control-Allow-Credentials", true);
+  res.header(
+    "Access-Control-Allow-Headers",
+    "Origin, X-Requested-With, Content-Type, Accept"
+  );
+  next();
+});
+
 app.get("/api/get/*", async (req, res) => {
   const urlLink = req.params[0];
   const authHeaders = req.headers.authorization || null;
@@ -50,6 +61,8 @@ app.get("/api/post/*/:data", async (req, res) => {
       accept: "application/json",
       Authorization: authHeaders,
       "Access-Control-Allow-Origin": "*",
+      "Access-Control-Allow-Methods": "GET,PUT,POST,DELETE,PATCH,OPTIONS",
+      "Access-Control-Allow-Credentials": true,
     },
     method: "post",
     url: urlLink,

vercel.json

@@ -6,10 +6,31 @@
       "use": "@now/node"
     }
   ],
-  "routes": [
+  "rewrites": [
     {
-      "src": "/(.*)",
-      "dest": "index.js"
+      "source": "/(.*)",
+      "destination": "index.js"
+    }
+  ],
+  "headers": [
+    {
+      "source": "/api/post/(.*)",
+
+      "headers": [
+        { "key": "Access-Control-Allow-Credentials", "value": "true" },
+
+        { "key": "Access-Control-Allow-Origin", "value": "*" },
+
+        {
+          "key": "Access-Control-Allow-Methods",
+          "value": "GET,OPTIONS,PATCH,DELETE,POST,PUT"
+        },
+
+        {
+          "key": "Access-Control-Allow-Headers",
+          "value": "X-CSRF-Token, X-Requested-With, Accept, Accept-Version, Content-Length, Content-MD5, Content-Type, Date, X-Api-Version"
+        }
+      ]
     }
   ]
 }