Decode Base64 encoded text in Cloudflare Workers

cloudflare-workers-base64.js

/* Demo: https://cloudflareworkers.com/#6168c0dbeb076f1e3ac7eb102082361f:https://www.google.com/ */

addEventListener('fetch', event => {
  event.respondWith(handleRequest(event.request))
})

function fromBinary(msg) {
  const ui = new Uint8Array(msg.length)
  for (let i = 0; i < msg.length; ++i) {
    ui[i] = msg.charCodeAt(i)
  }
  return ui
}

async function handleRequest(request) {
  const encodedData = fromBinary(atob(`zG7JdnPN2ahJesk2m14XYQ==`))
  console.log(encodedData)
  return new Response(encodedData, {
    headers: {
      'content-type': 'application/octet-stream'
      }
    })
}