It always gives 401 unauthorized error whenever I try to get, it works fine with postman, directly getting from chrome, however when I try it from javascript it always gives 401 error

const axios = require('axios');
const fs = require('fs');

const username = 'admin';
const password = 'cctv@123';
const cameraIP = '192.168.0.140';

// Make the GET request with basic authentication
async function makeAuthenticatedGetRequest() {
    const uri = 'ISAPI/Security/userCheck?format=json';
    const url = `http://${cameraIP}/${uri}`;

    const auth = {
        username: username,
        password: password,
    };
    const response = await axios.get(url, { auth });
    console.log(response.data);
    const responseData = JSON.stringify(response.data.data, null, 2);
    // console.log(responseData);
fs.writeFile('output.json', responseData, (err) => {
    if (err) {
        console.log(err);
    } else {
        console.log('File saved!');
    }
});  
}

makeAuthenticatedGetRequest();

Any help would be appreciated,
TIA