function adjustIframeHeight() { const iframe = document.getElementById('myIframe'); if (iframe) { // Send a postMessage to the iframe to request its content height iframe.contentWindow.postMessage({ type: 'getIframeHeight' }, '*'); } } // Listen for postMessage responses from the iframe window.addEventListener('message', function (event) { if (event.data && event.data.type === 'iframeHeight') { const iframe = document.getElementById('myIframe'); if (iframe) { iframe.style.height = event.data.height + 'px'; } } }); // Adjust the iframe height initially and whenever the content changes window.onload = adjustIframeHeight; window.onresize = adjustIframeHeight;