JSFiddle - React, Tailwind, and code Playground

by johan polson

HTML

<button id="send">
send
</button>

JavaScript

window.addEventListener("message", (event) => {
  console.log("message in")
})

window.document.getElementById("send").addEventListener("click", (event) => {
  console.log("seding");
  window.postMessage({},"*");
})