I was coding a basic program in JavaScript using axios and express to learn more about how OAuth2 worked when my client All of the sudden gave an error.

This is the part of the code it errors on.

//^^^^^^^^^^
// defining web server

const formData = new url.URLSearchParams({
    client_id: webid,
    client_secret: websecret,
    grant_type: 'authorization_code',
    code: code.toString(),
    redirect_uri: redirect_uri,
});

const oauthInfo = await axios.post('https://discord.com/api/v10/oauth2/token',
    formData, {
        headers: {
            'Content-Type': 'application/x-www-form-urlencoded',
        }
});

// below is starting everything           

Full code: https://pastebin.com/FbHVkKRi