JSFiddle - React, Tailwind, and code Playground
by t2t2
JavaScript
var request = new XMLHttpRequest()
request.open('GET', 'https://plumbr.eu/robot/ready')
addEventListener.call(request, 'load', function () {
console.log('all headers', request.getAllResponseHeaders())
console.log('arbitary header', request.getResponseHeader('X-Arbitary-Header'))
})
request.send()