Is it possible to get the HTML content of a web page which were opened through window.open method

Here is a demonstration of my doubt

I couldn’t see any log on either of the windows and div “content-display” never changed

async function navigate() {
  const myWindow = window.open("https://www.example.com", "", "width=100,height=100");

  myWindow.onload = function() {
    const innerContent = myWindow.document.body.innerHTML;
    displayContent(innerContent);
  };
}

function displayContent(content) {
  console.log(content)
  const contentDisplay = document.getElementById("content-display");
  contentDisplay.innerHTML = content;
}

<button onclick="navigate()">Click it</button>
<div id="content-display"></div>