function create(example.com) { var win = window.open(); win.document.body.style.margin = '0'; win.document.body.style.height = '100vh'; var iframe = win.document.createElement('iframe'); iframe.style.border = 'none'; iframe.style.width = '100%'; iframe.style.height = '100%'; iframe.style.margin = '0'; iframe.src = url; win.document.body.appendChild(iframe); }