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iframe.html

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        #body {
            width: 70em;
            max-width: 100%;
            margin: 0 auto;
        }

        iframe {
            width: 100%;
            margin: 0 0 1em;
            border: 0;
        }
    </style>
</head>

<body>
    <div id="body">
        <h1>Iframe height demo</h1>
        <h2><code>iframe</code> <strong>without</strong> height adjustment</h2>
        <iframe src="backtop.html"></iframe>
        <h2><code>iframe</code> <strong>with</strong> height adjustment</h2>
        <iframe id="test"
            src="https://developer.juphoon.com/portal/reference/V2.3/android/classcom_1_1juphoon_1_1cloud_1_1_j_c_client.html"
            frameborder="0"></iframe>
        <div id="labfooter">
        </div>
    </div>
    <!-- <iframe
        src="https://developer.juphoon.com/portal/reference/V2.3/android/classcom_1_1juphoon_1_1cloud_1_1_j_c_client.html"
        frameborder="0"></iframe> -->
    <script>
        function setIframeHeight(iframe) {
            if (iframe) {
                var iframeWin = iframe.contentWindow || iframe.contentDocument.parentWindow;
                if (iframeWin.document.body) {
                    iframe.height = iframeWin.document.documentElement.scrollHeight || iframeWin.document.body.scrollHeight;
                }
            }
        };

        window.onload = function () {
            setIframeHeight(document.getElementById('external-frame'));
        };


    </script>

    <script type="text/javascript">
        function reinitIframe() {
            var iframe = document.getElementById("test");
            try {
                var bHeight = iframe.contentWindow.document.body.scrollHeight;
                var dHeight = iframe.contentWindow.document.documentElement.scrollHeight;
                var height = Math.max(bHeight, dHeight);
                iframe.height = height;
                console.log(height);
            } catch (ex) { }
        }
        window.setInterval("reinitIframe()", 200);
    </script>
</body>

</html>