Live Demo: jQuery Capture Click into iFrame

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery Capture Click into iFrame</title>
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
<style>
    body{
        padding: 30px;
    }
    iframe{
        width: 100%;
        height: 200px;
        border: 2px solid #ccc;
    }
</style>
<script>
$(document).ready(function(){
    $("iframe").on("load", function(){
        $(this).contents().on("mousedown, mouseup, click", function(){
            alert("Click detected inside iframe.");
        });
    });
});
</script>
</head>
<body>
    <iframe src="/examples/html/div-layout.php"></iframe>
</body>
</html>