Reproduce Parse Error when sending notices to Honeybadger via POST requests inside JSDOM instance

honeybadger-in-jsdom.js

const jsdom = require('jsdom');

const jsdomInstance = new jsdom.JSDOM('', {
  url: 'http://example.com/',
  runScripts: 'outside-only',
});

jsdomInstance.window.eval(`
// Make POST request to Honeybager Notice API.
const request = new XMLHttpRequest();

// Fails with 'Parse Error' from Node's internal TLS implementation:
request.open('POST', 'https://api.honeybadger.io/v1/notices/js', true);

// Fails with 'Cross origin http://example.com forbidden' from JSDOM's XMLHttpRequest
// implementation:
//request.open('POST', 'https://api.honeybadger.io/v1/notices', true);

request.setRequestHeader('X-API-Key', /*'Your API key here'*/);
request.setRequestHeader('Content-Type', 'application/json');
request.setRequestHeader('Accept', 'text/json, application/json');

request.addEventListener('error', () => {
  console.error('Honeybadger error payload failed to send.');
});

request.addEventListener('load', () => {
  if (request.status !== 201) {
    console.error('Expected 201 status from Honeybadger, but got ' + request.status);
  } else {
    console.log('Success');
  }
});

let backtrace;

try {
  throw new Error('');
} catch (error) {
  backtrace = error.stack;
}

const payload = {
  error: {
    class: 'MyError',
    message: 'This is only a test.',
    backtrace,
    generator: 'throw',
  },
  request: {
    cgi_data: {
      HTTP_USER_AGENT: navigator.userAgent,
    },
    context: {},
    url: document.URL,
  },
  server: {
    environment_name: 'test',
    project_root: window.location.protocol + '//' + window.location.host,
  },
  notifier: {
    language: 'javascript',
    name: 'honeybadger-in-jsdom',
    url: 'https://github.com/butchler',
    version: '1.0.0',
  },
};

request.send(JSON.stringify(payload));

console.log('Sending request...');
`);