mTLS calls do not work in K6

Hi,

When I make an mTLS call using K6 I end up getting a 401 Not Authorized - likely due to certificates . Not sure where I am making a mistake . This is the code that I have

import http from ‘k6/http’;

import encoding from 'k6/encoding';

import { check } from ‘k6’;

export const options = {

// … other options …

insecureSkipTLSVerify: true,

tlsAuth: [

    {

domains: [‘ldomain1’, ‘domain2’], // Replace with your target domain(s)

cert: open(‘cert.cer’), // Path to your client certificate

key: open(‘key.key’), // Path to your client private key

    },  

// You can add more objects for different domains/certificates if needed

  \],

};

const baseUrl = ‘https:///xxxxxxxx’;

const evurl = ‘https:///xxxxxx’;

const token_headers = {

“Content-Type”:“application/x-www-form-urlencoded”,

“User-Agent”:“PostmanRuntime”

}

const params_token = {

grant_type: ‘client_credentials’,

client_id: ‘>’

};

const params_ev = {

<redacted>>: "xxx",

<redacted>: "<redacted>",

<redacted>: "1",

<redacted>: "<redacted>"

}

export default function()

{

const res = http.post(baseUrl,params_token,token_headers);

console.log(`Response status: ${res.status}`);

console.log(`Response body: ${res.body}`);

const access_token = res.json().access_token;

const ev_headers = {

“User-Agent”: “PostmanRuntime7.50.0”,

“Authorization”: "Bearer "+ access_token,

//“Authorization”: hardtoken,

“”: “”,

“”: “”,

“”: “”,

“”: “”,

} ;

console.log(“linebreak”);

console.log(ev_headers);

console.log(params_ev);

const res_ev = http.get(evurl,params_ev,ev_headers);

console.log(`Response status: ${res_ev.status}`);

console.log(`Response body: ${res_ev.body}`);

console.log(`Response body: ${JSON.stringify(res_ev.headers)}`);

The first call to domain 1 goes through but the second call to domain 2 does not go through. However the same paraneters / headers / certs work in postman

This is resolved - it was an issue with the headers