hello again,

import express from "express";
import cors from "cors";
import supertokens from "supertokens-node";
import { middleware } from "supertokens-node/framework/express";

let app = express();

app.use(cors({
    origin: "http://localhost:3000",
    allowedHeaders: ["content-type", ...supertokens.getAllCORSHeaders()],
    credentials: true,
}));

// IMPORTANT: CORS should be before the below line.
app.use(middleware());

// ...your API routes

i've already set this config on my backend but it still not working. axios said to me cors error.

what is the cors error?

The browser console will have an error message for this, can you send that?

already sent

I meant the console, not the network tab

sorry 🙂

No problem

Right, youre visiting the webpage using your IP and not localhost which is why you are getting an error. You can either visit the page using

localhost:3000

or change your code snippet for cors to

app.use(cors({
    origin: "http://127.0.0.1:3000",
    allowedHeaders: ["content-type", ...supertokens.getAllCORSHeaders()],
    credentials: true,
}));

it doesnt work

whats the response headers from the OPTIONS API?

204

right. So this seems fine

hasnt header because cors error.

whats the cors error?

whats shown on the browser console?

right. Which version of the backend SDK are you using? Can you update it to the latest and check again?

i mean the backend SDK version

"supertokens-node": "^12.1.6"

right. You need to update that to 13.0.0

ooops