@tamara-solution/checkout/src/helpers/validate-domain.js

Script will be embedded in merchant's site to checkout. The merchant's don't need to redirect to tamara's site.

const TAMARA_URL_PATTERN = /^https:\/\/checkout(-staging|-sandbox){0,1}.tamara.co\/{0,1}\?(&{0,1}\w*=\w*)*checkoutFrame\=iframe(&{0,1}\w*=\w*)*/
const LOCALHOST_PATTERN = /^https{0,1}:\/\/localhost:[0-9]{4}\/{0,1}\?(&{0,1}\w*=\w*)*checkoutFrame\=iframe(&{0,1}\w*=\w*)*/
const LOCALHOST_IPV4 = /^https{0,1}:\/\/(127|192)(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}:[0-9]{4}\/{0,1}\?(&{0,1}\w*=\w*)*checkoutFrame\=iframe(&{0,1}\w*=\w*)*$/

function isLocalhost(url) {
  return LOCALHOST_PATTERN.test(url) || LOCALHOST_IPV4.test(url)
}

function isValidTamaraURL(url) {
  return TAMARA_URL_PATTERN.test(url)
}

export { isLocalhost, isValidTamaraURL }