Code: Select all
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8"/>
<title>iframe javascript test</title>
</head>
<body>
<script type="text/javascript">
{
let elem;
if(window===top){
elem=document.createElement("iframe");
elem.onload=()=>{
const elem=document.createElement("h1");
elem.textContent="iframe loaded";
document.body.appendChild(elem);
};
elem.src=location.href;
}else{
elem=document.createElement("h1");
elem.textContent="inside iframe";
}
document.body.appendChild(elem);
}
</script>
</body>
</html>
Code: Select all
┏━━━━━━━━━━━━━┓
┃inside iframe┃
┗━━━━━━━━━━━━━┛
iframe loaded
Code: Select all
┏━━━━━━━━━━━━━┓
┃ ┃
┗━━━━━━━━━━━━━┛