XMLHttpRequest polyfill for node.js

Based on https://github.com/pwnall/node-xhr2

• Adds support for cookies
• Adds in-project TypeScript type definitions
• Switched to TypeScript

Cookies

• saved in XMLHttpRequest.cookieJar
• saved between redirects
• saved between requests
• can be cleared by doing:

  import * as Cookie from 'cookiejar';
  XMLHttpRequest.cookieJar = Cookie.CookieJar();

Aims

• Provide full XMLHttpRequest features to Angular Universal HttpClient & node-angular-http-client

Changelog

1.1.0

• added saving of cookies between requests, not just redirects
• bug fixes
• most tests from xhr2 ported over and passing