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BretCameron/parent.html

Created July 16, 2019 16:20
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An HTML file containing an iframe, the height of which changes automatically.
Raw
parent.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta content="width=device-width, initial-scale=1.0" name="viewport">
<meta content="ie=edge" http-equiv="X-UA-Compatible">
<title>Parent File</title>
</head>
<body>
<iframe id="iframe" src="child.html" style="width:100%;border:none;"></iframe>
<script>
window.onmessage = (e) => {
if (e.data.hasOwnProperty("frameHeight")) {
document.getElementById("iframe").style.height = `${e.data.frameHeight + 30}px`;
}
};
</script>
</body>
</html>
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